Rock Island Armory (RIA) is a brand name that is owned by Armscor Global Defense located in Marakina, Philippines. Armscor obtained a license from the Philippine government in 1952 to begin making firearms. In 1980 it became Arms Corporation of the Philippines (ArmsCor) and in the mid-80s they bought the US brand “Rock Island Armory” and began exporting firearms to the US. They have invested in quality improvement and automation to create their wide variety of firearms offered today. They also have opened plants in the US – one in Stevensville, MT, and the other in Pahrumo, NV.
In March 2022, a Philippine TV crew visited the Armscor factory in Marakina and produced this nice video that focuses mainly on their 1911 production area:
The reason I wanted to share this with you is that RIA pistols do have a long history and Armscor is not some fly by night company. This is my opinion – I would describe RIA 1911 pistols as being designed, built and sold to shooters who want an acceptable 1911 without spending a fortune. They are not claiming to turn out semi-custom pistols – instead, good enough pistols at an affordable price point.
In marketing, when you are trying to hit a certain price point to attract the buyers you are after, you have to figure out the features, the materials, and process combination to get you there. Now reliability and accuracy are features also so this needs to be factored in – the pistols need to be good enough but not necessarily over the top – even though we wish they were.
Ok, but are the 9mm HC 17 round pistols “good”?
So let’s go back to the question – are they good? For the price, yes. You can’t compare them to far higher end pistols such as Stacatto or Bul – it’s simply not fair. It would be like comparing a daily-driver economy model Ford or GM car to a BMW. Yes, they are all cars but the engineering and attention to detail during manufacturing in the BMW are going to be very different. They are for different markets comprised on people with different disposable income levels and tastes – and have different price points.
The two pistols I am discussing to be clear are the 9mm RIA A2 HC pistols – the 51679 Tac Ultra FS HC and the 56645 Pro Ultra Match HC – by the way, FS means “Full Size” and HC means “high capacity” because they hold 17 rounds in staggered magazines.
The frames and slides are made from 4140 alloy steel via CNC and they do have QA steps. The barrel seems to be pretty decent but then the price point issue begins to creap in.
I bought four of the A2 HC 80% frames back when I was doing R&D on magazines for the 10mm/..40 S&W calibers (they use the same magazine design) and also the 9mm magazines. What not everyone knows is that these pistols also share a common frame. I installed the RIA magazine catch and ejector but they milled all of the holes and applied, as you can see, a very decent parkerized finish.
Here are two 80% frames with the top one holding a 10mm magazine and dummy red A-Zoom round. The bottom one has a 9mm magazine. The blue round is an A-zoom snap cap and I don’t use or recommend them any longer as the bullet is shaped very differently than a 115gr or 124gr FMJ round so you may think feeding will work when it doesn’t. I sure found that out the hard way.ĵ
For example, to keep costs down, Armscor uses metal injection molded (MIM) parts. I know through first hand experience, the extractors are MIM and they will not have the longevity of a forged part made from tool steel such as one from Wilson Combat *but* the extractors can be replaced if you ever have a problem so it’s not like you suddenly have a boat anchor and that’s one of the beauties of 1911-style pistols – there is a huge aftermarket parts industry and tons of websites/forums out there to help you sort out what is going on not to mention 1911 gunsmiths and that Armscor has good warranty service – I’ve had to avail on it twice – one on a 6″ 10mm Big Rock and also on a 9mm Tac Ultra that had failure to extract issues … and on that one, there was something seriously wrong because just replacing the extractor didn’t work. [Click here for a post I wrote about my extractor journeys with RIA 9mms].
The top is the original Armscor extractor and the claw snapped off. The bottom is a forged tool steel Wilscon Combat. If you run into an issue, read the post I wrote and upgrade to a Wilson.
They also use a parkerized finish and its applied very nicely. There is a but coming – but parkerizing leaves a rough finish and means they need to wear in more compared to other brands that use a different finish and/or have careful polishing and tuning while parts are assembled.
Every parkerized RIA pistol that I have seen has a very nice consistent finish on it. The left pistol is the TAC and you can tell due to the bushing, normal barrel and no checkering on the grip. The right pistol is the Match. It has a bull barrel, full length guide rod and checkering on the front of the grip. The rear sights differ but you can’t see them in this photo.
That’s an 80% frame with no modifications right next to it’s finished cousin – a 51679 Tac Ultra. Under the pistol is one of our tuned Mec-Gar P18 magazines with a Dawon +200 base plate. Click here for our 9mm RIA magazine offerings.
Conclusion
This is my way of saying they are good enough. You are buying an entry level pistol that has been on the market for many years and word would get around quickly if they were utter junk. Does the gun need wear in? Yes. Might there be issues? Yes. Do they have warranty support? Yes and they do stand behind and repair their pistols.
Would I recommend these RIA Tac Ultra FS and Pro Match Ultra HC pistols to someone looking for an entry level 17 round 9mm 1911 style pistol? You may find it odd but yes I would and I’d explain the above.
I hope this helps you out.
1/6/2023 Update: I’ve had zero problems since writing this post. Both pistols have cycled thousands of times during magazine testing (meaning rounds are cycled by hand but not actually fired) and the slides are smooth as glass. I took both to the range recently and they functioned just fine with both 115 and 124gr bulk FMJ – I think the 115gr was CCI and the 124gr was S&B if I recall right.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Since Kalashinkov USA introduced the KP-9, I’ve had a handful of guys ask me to make a quick takedown pin for it. Well, it turns out it is a unique size and the hinge pin would need to be around 3.75mm – smaller than what any of my vendors could reliably hit. My existing pins all have a diameter of .156″ or about 3.96mm so they would not work.
So, what to do? I’d bought a KP-9 with their brace and it was a nice weapon in terms of fit, finish, and operation. I’d pressed out the unique hinge pin and saved it so I could have replaced it but I decided to go another route. By the way, the original pin was swollen at the ends from being set but the middle measure 3.75 so that’s the number I was going with.
KP-9 right out of the box.
There’s the hinge pin between the rear sight and the start of the dust cover rail.
There is a spring on the pin to help the dust cover pop up when the recoil rod is pushed in. Note, the fitment of the cover to the rear sight block and rear trunnion is very good. If it weren’t for the spring, the cover would stay down. By the way, the big black round thing you see on top of the barrel pin has a groove behind it. When the brace is swung into the folded position, a tab on the brace goes into the groove and holds it in the folded position.
This is the original hinge pin and the spring that pops the dust cover up. The pin is 2.75mm wide and about 24-25mm long – mine measured 24.31mm after I pressed it out. Some deformation would have occurred when it was pressed in and the ends flared open.
How To Remove The Original Pin
I used a punch on my air hammer to pop the old pin out. You could also press it out or drill it out.
I used my ATS air riveter to pop out the pin in a matter of seconds. You could press or drill out your pin.
Reaming the Hinge Hole
If you look at the hinge, there is enough material around the hinge pin material to ream it out a bit. I decided to get a 0.1563″ (3.97mm) cobalt reamer and a 4mm cobalt reamer. My thinking was to first try the smaller reamer and if that proved to be too small, I’d step up to the 4mm (0.1575″). I bought mine from McMaster-Carr but you can get them from any reputable vendor.
Reamers are cool – they make perfectly round holes and you can do them in a hand drill if you are so inclined, which I was. Secure your weapon in a vise so it can’t move, use a drill bit or other pin to align the hinge parts from the other direction. As you ream, this slave pin, or alignment pin, will be pushed out of the way as a reamer’s head is blunt.
Put your reamer in your drill chuck and coat it with cutting oil, then slowly insert the reamer into hole – let it cut – don’t force it. You’re not taking off a ton of material so I reamed the hole out in one go.
The slave pin did it’s job and I had a true hole in the end. Okay, the .1563″ reamer’s hole worked but was too tight – If you don’t intend to pull the pin much, it would work but it was not what I wanted. I then did the same thing by inserting a slave pin but this time used the 4mm reamer and it worked great.
You see, getting the hole size right matters a great deal compared to some weapons such as the M92 and Krinks – they want to cam the cover up so there is tension that locks everything in place. With the KP-9, the fit of the dustcover relative to the rear sight block is so good that there isn’t tension so you need the quick takedown pin to fit snugly and the detent ball to do its job.
Here’s the full view of the hinge. Note the detent ball on the pin that keeps it from accidentally sliding out of the hole.
The way a quick release pin that has a ball bearing detent works is that a spring is behind the ball bearing pushing it up but it is captured in the hole. By sticking up, the ball bearing limits travel. Having a circular surface if you pull hard enough during extraction then the ball bearing is pushed down, the pin pulls free and then the spring pushes the ball bearing detent back up once it is clear.. Insertion is just the reverse.
In closing
I really like how it turned out. For folks who want to add a quick takedown pin, just order the AK-V pin [click here to open that page in a new tab] and then ream your hinge open. Note, you might want to get the same size reamers and see which you prefer – start with the smaller one first of course.
The pins make removing the dust cover really easy.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
This post reflects a journey I’ve been on regarding making and selling magazines for the 9mm Rock Island Armory (RIA) FS A2 pistols. These pistols are based on Para Ordnance designs that use a staggered magazine that can accomodate 15+ rounds in a fattened 1911 grip. Think of them as 1911 pistols on steroids with a fat grip the holds more rounds they hold more rounds so sometimes RIA calls them “HC” for high capacity.
These are my two 9mm test platforms. The top pistol is the 56645 Pro Ultra Match HC (you can see the checkering on the front strap of the grip) and the bottom is 51679 Tac Ultra FS HC.
For over a year now, I’ve been making magazines for the FS A2 pistols chambered in 10mm and .40 S&W. The interesting thing is that 9mm, .38 Super, .40 S&W and 10mm all use the same frame. You’d think making the 9mm mags would be an easy jump – I did at least — maybe it was just me.
The 10mm round is bigger than 9mm – it is fatter and longer. You don’t think about that a lot until you are trying to get the ejecting case to hit the ejector – the 10mm round is a hell of a lot easier to make hit the ejector than the 9mm. Also, the relatively short 9mm round has a long way to travel before it goes into the chamber. I found myself having to kick out some assumptions I had for magazines in order to get the 9mm round to reliably work.
In general, I now understand why the 1911 community is so fast to cast suspicion on the magazines when feed and ejection problems are happening. John Browning was an absolute genius and the 1911 design shows it but it does need all of the parts to be working together correctly to deliver a reliabile pistol.
Oh yeah, the magazines can make or break reliability. Let me share with you some observations I’ve made so far about the magazine after making a few hundred of the 9mm models either modifying P18 magazines (.38/9mm) or P16 mags (10/.40).
What about feed lip length?
The feed lips are the part of the magazine that hold the top round down and at the right angle. If they are too short, the round tends to be presented at too high of an angle and if they are too long, the front gap may not be adjustable enough to support the feed angle needed.
The blue rounds are A-Zoom Snap Caps. I use them during magazine prototyping and testing rather than live ammo The magazine lips are long pieces of rounded sheet metal that are going up the sides of the cartridge and are both positioning and retaining the round. Note the plastic “shelf” of the follower that is on the left bottom edge of each magazine that is level with the metal body. When the last round is fed from the magazine, the follower rises and that shelf is what engages the slide lock lever to put upwards pressure on it. When the slides travels rearword with the extraction and ejection of the last round, the slide lock level pushes up and locks the slide open ready for the next magazine to be fired.
The original 1911 was designed for .45 ACP but we are feeding a little short round from the back of the magazine towards the chamber a mile away. How can we maintain control? The short answer is have longer feed lips on the magazine. These longer lips are what get the relatively small 9mm round from the back of the magazine all the way into the chamber.
“We’ve got a long way to go and a short time to get there” were the famous words in “East Bound and Down” by Jerry Reed in the movie classic Smokey and the Bandit. The feed lips need to control the feeding of the cartridge all the way from the back of the magazine to the point the bullet engages the feed ramp and then starts to go into chamber. A 9mm Luger cartrdge is 1.169″ long. In comparison, 10mm Auto is 1.260″ overall. and .45 ACP is 1.275″. You might thing those differences are small but they definitely impact the design and operation of the pistol – they need to be planned for if you want reliability.
The reason I listed this section is that the length of the feed lips can vary depending on the model of pistol so if you are trying to use a magazine from another type of pistol you may find you need to trim the feed lips back. I didn’t have to change the P16 or P18 mags for the 9mm but I did need to modify the P16 Para mags to feed reliability in RIA 10mm and .40 S&W pistols.
What happens if the front feed lip gap is too wide? You tend to get a Failure to Eject (FTE) or the Slide locks open prematurely
The feed lip gap at the front of the magazine controls where the cartridge is going vertically – the angle towards the chamber. Increase the gap and the front of cartridge rises and decrease it and the angle goes down. But wait, there’s more.
If the front of the round pushes up too much, it will cause the extracting case to slide up the breech face and out of position thus missing the ejector bar you can see just above the rear of the cartidge. The tell tale is that you have the new round and the old case in the back of the slide at the same time.
Now here’s the first gotcha: The feed lip gap still controls the rise of the bullet in the front but if it goes too far, the bullet is going to interfere with extraction, pushing the extracted case upwards on the breach face of the slide and out of position to correctly engage the ejector and all of a sudden you have the old case in the slide, a new round trying to feed and you have a jam. If you go for a front feed lips gap of .305-.308″ you will be fine. Depending on your pistol once you get somewhere around .320″, you are going to cause the ejection problem I just mentioned
There’s an interesting design issue with all 1911 breech faces – they are flat. The extractor pushes the case to the right in this photo. The ejector bar is exiting its cut out from the breech face in the lower right but there is nothing to truly limit upwards travel.
I’ve spent a lot of time chasing this dimension because you tend to get better feeding the more the bullet is oriented towards the chamber but with the 9mm you have to be mindful of the impacts on the the ejecting cartridge.
By the way, in addition to interfering with ejection, a feed lip gap that is too wide can allow the follower to travel too far upwards and prematurely lock the slide open with one cartridge remaining in the magazine.
I should point out that the most likely cause of a failure to eject (FTE) is a faulty magazine. The second most likely is a worn or failing extractor. It probably is not the ejector bar.
What happens if the front feed lip gap is too narrow? You tend to get a failure to feed (FTF)
If you move the feed lips to close together, the new round that needs to be fed into the chamber comes in at too flat of an angle and smashes straight into the feed ramp. On one hand the 9mm bullet is rounded abruptly but the feed ramp is quite abrupt. I tend to find that somewhere under .302″ this happens but I haven’t done a lot of testing on this dimension because I have been more focused on wanting the cartridge angled up vs. down.
The round travels up the feed ramp but it needs have enough of an upward angle to ride the ramp up. If it is too shallow it will slam the bullet into the ramp and stop. Note that RIA did polish the ramp – that was an unexpected nice touch. In general, I’d recommend polishing the ramp smooth to aid in feeding. Also, look at the shape of the snap cap – it mimics a classic full metal jacket 115gr bullet. The curvature of the bullet will aid in feeding. Different bullet shapes can affect feeding in some pistols and you may need to tweak certain mags for certain rounds – it’s next to impossible to guess so test your pistol with certain combinations of cartrdiges and magazines to ensure they are reliable. You may find your pistol likes some and hates others. I’d probably just move to another cartridge if it were me and my pistol had issues with a given round.
Yeah, the lips have a memory
So the magazines are made of high carbon steel that is heat treated. The feed lip gap falls within a certain tolerance. If it changed either wider or narrower, the lips are going to move back towards their original positing anywhere from .002-.004″ so plan accordingly.
This is where experience matters with the mags you are working with. Once you have your dimensions figured out, you may find you need to bend further than the nominal dimension so when the sheet metal starts to relax it will stop in the range you want.
You may also find that the metal does most of its movement in some number of minutes after you do the initial tune and need to do it one more time. Some guys will wait overnight to do the final tuning. I wait at least 30 minutes.
What about left and right bends to the feed lips?
The more you bend the feed lips in one direction too much, the round will point that way and either glance the chamber wall or actually slam into the chamber and stop depending on how off you are. Try and get the cartridge to point into the center of the chamber in terms of left to right.
This is an 80% RIA frame that I used during prototyping. I’m not enough of a machinist to actually complete it but it really helps you see what is going on. If the right feed lip is bent too much to the right then the round will go in that directton – same for the left lip. You want to point the round into the center of chamber.
What about the follower?
It’s really interesting how important the follower is. On one hand it is pushing the rounds up againt the feed lips properly and on the other, there is a small “shelf” on the front left edge that pushes the slide stop lever up and locks the slide open on empty (unless you are using competition followers such as the Arredondos that purposefully do not lock the slide open).
The walls at the top of the 9mm mag really need to taper inward to properly channel the staggered round into the single exit position at the top. The follower’s sides need to be appropriately tapered and rounded as well less they drag on the walls. The original Mec-Gar followers have significant drag that you can feel when loading the mgazine so revising them made the most sense.
The Arredondo follower is on the left. It is more angled and rounded on the right side in this photo than the Mec-Gar on the right. The Arredondo was desined for competition is when you look at the bottom right edge of each you will see the Arredondo slopes down fast so it will not raise the slide stop lever. The Mec-Gar has a more elevated edge that will lock the slide open. Our modified Mec-Gar followers improve reliability by having more rounded edges but still can lock the slide open.
By the way, to make life more colorful, when you install the follower the spring tension will spread the feed lips wider by about 0.002-0.004″.
How about the spring?
The Mec-Gar springs are okay. How much spring is enough or to little really depends on how well it can keep constant upwards pressure on the follower to move the rounds up fast enough and keep them in position. With the drag on the follower reduced, the spring can do its job.
There is an exception though – if you add a magazine extension or base plate that adds capacity, the spring really ought to be longer so get a Wolff or Arredondo spring that can supply the pressure over a longer distance.
The top assembly has the a easy to identify blue Arredondo follower and longer spring. The spring is made by Wolff but is bent to properly hold the Arredondo follower. The black follower and shorter spring are the original Mec-Gar units.
Yes, springs can and do wear our so if you feel the follower is being pushed up sufficiently or is sluggish *and* the walls do not appear bent then you probably need a new spring.
What about lubricant?
Mec-Gar mags come with some lubricant all over the insides of the mags, follower, spring, floor plate and base plate. On one hand it protects against corrosion but on the other it can attract dirt.
I would recommend that you use a good dry lubricant film. I used to use Dupont’s Teflon dry lubricant film spray but they discontinued it over environmental and health concerns about Teflon. The company is now producing a dry film using a ceramic technology that I really like and find it does a remarkable job at lubricating magazines.
If you are in a marine environment and you need the corrosion protection the use the oil of your choice – you need to worry about rust, I get it. For me, the Dupont Dry Film Lube aerosol spray does a great job. The new followers and the inside of the magazine tubes coated with this enables remarkably smooth movement of the follower.
Number your magazines
A tip you really ought to consider is to number your magazines so you can keep track of them. I like stickers because you can readily remove them if you put a baseplate on a different magazine tube but there are plenty of guys who use a permanent marker or etcher to uniquely identify each magazine.
The benefit of doing this is that when you are at the range if you find that some magazine is having problems, you can write down or take a photo of the number and know what you need to work on. Face it, if you have a bunch of mags and they all look pretty similar it can be hard to keep track of them otherwise.
By numbering the magazines, I can track dimensions and performance over time.
We do sell the stickers if you are interested – click here.
I’m still learning
I don’t claim to know everything – let me right up front about that. I now know what people mean whey they say “The more I learn, the less I know”. In other words, as I learn more I am increasingly aware that there is a ton of stuff I don’t know.
Hopefully this gives you some insight about why one magazine will work great but then another one doesn’t. The above are things to consider.
My reason for writing this is to give you some idea of what we’ve learned and are building into each 9mm magazine that you buy from us – we aren’t just relabeling mags and selling them at a heck of a mark up.
What are are doing is ensuring the dimesions, doing the necessary modifications and testing teach magazine in one of our 9mm RIA pistols to ensure you get a reliable mag. If you have problems with a magazine from us, we will definitely make it right.
We do have a new post about how to load our v2 9mm magazines to get reliable feeding. Click here for it.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Okay, Ronin’s Grips started making Yugo M70 grips sometime around 2004 and rapidly added models – the challenge was that I hand polished each and every one of them. It took a ton of time, handwork and was putting my carpal tunnel through the roof. Jeff Miller of HillBilly Firearms told me to abrasive blast the grips for a better grip and a heck of a lot less handwork. I was sold – I had to change something. Jeff also gave me a few tips – get a foot control to protect the seals vs. being in the cabinet with all of the grit, put transparency film on the window of the unit to make it last longer and he told me to get a “thumper” to make the grit settle.
Well, way back in the day margins were super thin so I bought a large bench top abrasive blast cabinet from Cyclone Manufacturing in Dowagiac, MI – they are about an hour from my shop and I could pick it up along with the foot control, I got a box of transparency film either from Amazon or a local office supply store, but I had no idea what a “thumper” was or how important it is to productivity.
Fast forward to about a month ago. Abrasive blasting used to take me a while – blast, hit the cabinet or manually move the material around in the hopper, blast some more, whack the cabinet or move the material around … it gets old. It took me years to realize that this really sucks but blasting was so much better than polishing that I didn’t think much about it.
So, a “thumper” is basically and industrial vibrator (insert joke here) that uses an electric motor in a housing with off center weights on the shaft that then vibrate like crazy when the motor runs. I guess you could call it the power of Amazon but one day I was scrolling through Amazon and a suggested item came up – a concrete vibrator – and it looked like a small motor in a housing. I had 25 Galil grips I was going to blast and all of a sudden I remembered Jeff’s advice.
Okay, the power of a vibrator with a blast cabinet is that the vibrations cause the grit to shake down to the lowest point constantly. You can blast and blast and blast. The unit was $118 with free delivery and I figured I would give it a try.
It shipped from the importer, not Amazon, and showed up a few days later – it was pretty quick as I recall. The unit was very well made other than my needing to tape up a plastic junction box on the power cord that was a little cracked and I needed to attach a 120 volt plug – it was one phase and they said about 40 watts so nothing special. The machine label says – 110V, 1 phase, 40 watts, 3600 RPM – the little thing totally kicks butt and was only $49.
Here’s a close up of the label – note it says 40 watts. There are bigger units but I don’t think you need them for an abrasive blaster.
I didn’t put it on the blaster right away because I wasn’t really sure how violent it would be and I am glad I didn’t – it vibrates like you would not believe – there is nothing subtle about it – and I immediately realized two things – 1) I was going to mount it on the free standing tool bench and not the plastic blast cabinet walls or it would eventually shake loose and 2) I needed a variable speed control to tone it down some.
Try #1
Okay, so sometimes you just have to poke fun at yourself – or at least I do. I marked the bolt holes on the 3/4″ plywood bench top and mounted the vibrator. I then plugged the power cord from the vibrator into the speed controller, the controller into a surge strip and turned it on at full speed.
I wish I had a before photo or a video of what happened next but I don’t. Every single thing on that table started vibrating right off of it. Yeah, all the grit went to the bottom on the blast table but the blast table was headed to the edge of the bench too. Whoa! I hit the off switch.
Try #2
I simply took some strips of plywood and added a cradle around the legs to limit travel. That worked. Time to try blasting some stuff.
Here’s the vibrator.
Here’s the speed controller.
Another view of the strips to limit travel. Everything on the floor had been on the workbench before I turned the vibrator on the first time 🙂 By the way, the 3/4″ plywood top is screws into the stands it is on.
Actually Blasting
Folks, it is night and day different – stunningly different. Because I don’t have to stop and whack the side of the baster or reach in and move grit around, I’d bet I’m getting work done 2-3 times faster. A bench top blaster doesn’t have a very deep bottom so without a thumper, I spent a lot of time moving grit over to the pick ,up.
Another fun lesson learned. Over the years, I’ve developed the habit of putting my chin on the plexiglass as I focused on doing the work. Don’t do that. I put my chin down on the vibrating plexiglass and it felt like someone was playing the tambourine with my teeth 🙂
Those are two IMI Galil grips getting blasted. What an amazing difference.
In Conclusion
This is one time I can honestly tell you that I have one regret – I should have done this years and years ago. Wow. It was worth it! I’ve used vibrator and speed controller both extensively for a little over a month and it’s a great combo. I don’t use the slowest speed but I am closer to the low end on the dial than I am the fastest speed.
Note, I got lucky with my first purchase. I really wasn’t sure what size to buy but the 40 watt unit has worked great. I can’t imagine anyone needing a bigger unit for a blast cabinet. These generic industrial vibrators have all kinds of uses including for the movement of powders, grains, rock, etc. so they sell bigger and more powerful ones as well.
I’d highly recommend this to anyone who has a ton of blasting to do and is getting tired of having to stop and manually move grit around.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Starting in 2021, I started to offer 10mm magazines for the Rock Island Armory A2 HC pistols – “A2” being a marketing opportunity to refer to the next generation 1911A1 pistol prototyping the US Army did starting in 2004 that experimented with different sights, extractors, mainsprings, etc. The “HC” stands for high capacity and reflects the RIA pistols are using a staggered magazine design to hold far more rounds than a single stack could.
At any rate, I had a number of customers ask me to produce mags for the 9mm RIA A2 HC pistols – the 51679 Tac Ultra and the 56645 Pro Ultra Match HC. Our 10mm mags had proven to be very successful and after enough requests, I decided to enter the 9mm magazine market.
One thing I learned with making AK grips is that you really need to have the weapon to make a part for it. This allows you to check fitment, reinforce potentially weak areas, etc. So, when I started with the 10mm mags, I bought a 52009 Rock Ultra HC and later a 56862 Tac Ultra Match HC. Why? Because you also find that a given firearm may differ enough that if you build and test only with it, you may not be making something others can use.
There’s an engineering problem called “stacked tolerance”. Every part has a specification that says, for example “9.0mm” and then there is a tolerance specified – for example “+/- .01”. That means the part produced can range from 8.99 to 9.01 in size. Make an assembly and all of those tolerances may combine, or “stack” in such a way that if you build a part to work for that particular unit then another assembly that happens to stack in the other direction may not be able to use that part. Testing on multiple pistols helps with a testing – at least a bit because you are reducing the odds of one pistol having a problem or working and others not.
So, by having both the 52009 and 56862 10mm pistols, I could test magazines to make sure they fed right, dropped free, etc. With the 9mm pistols, I had limited funds and just started with the 51679 – the Tac Ultra. That decision bit me hard.
The Initial Magazine Prototyping Didn’t Make Sense
When I prototype, I buy a bunch of original magazines and then start looking for what is close enough to modify and start tinkering with the feed lips, feed angles, the spring and the follower. To keep track of things, I applied numbered stickers to every magazine and kept track of the dimensions plus performance.
What I also learned with the 10mm mags is that the best dummy rounds are the machined aluminum A-Zoom Snap-Caps. Dummy rounds that are made from a case and a bullet will see the bullet pushed back into the case and/or get deformed after some fairly low number of cycles. The machined aluminum A-Zoom Snap-Caps are dimensionally accurate and can cycle hundreds of times before needing to be replaced. By the way, don’t do this type of work with live rounds – it’s an accident waiting to happen.
Back to the 9mm world, I was working on the mags and things just didn’t make sense. A magazine would work and then it wouldn’t. One set of dimensions would work and then they wouldn’t. Something just wasn’t adding up. The pistol would fail to eject randomly, I’d then have the old round and the new round in the slide at the same time and of course it jammed.
It had to be the mags right? I blew through a bunch of mags and time before it dawned on me that the pistol itself must have issues. I hadn’t questioned it before because the pistol was brand new out of the box. Sure, I had cleaned and lubed it first before cycling hundreds of snap caps through it. The problem was that I assumed it was good to go and the initial testing seemed to show a reliable pistol … but I only tested a few mags worth of snap caps – maybe 34-52 cycles max.
Testing The First Pistol
I loaded a magazine up, racked the slide and loaded a snap cap. I then pulled the slide back slowly and the extractor lost control of the extracted round as I pulled the slide to the rear. That wasn’t supposed to happen. If I went slow, it would either fail to extract completely or lose control of the round.
I’m not a 1911 gunsmithing guru but I had to learn some stuff really fast. I knew if I sent the pistol back to Rock Island/Armscor, it would be at least a month before I would get it back. So I read posts and watched videos that explained the pistol had an extractor problem and how to correct it. I bought a few different brands of 9mm extractors, the Brownells extractor tool, the Jack Weigand extractor gauge and tensioning tool.
Boy, I could not get that thing to work even after trying a few different brand extractors and a Wilson. At this point I was pretty ticked off. My last best guess was that the extractor looked like it was clocked slightly. When I inserted the Weigand 9mm gauge, I could feel initial tension as I inserted it and then it would drop off rapidly as I inserted the gauge the rest of the way (it centers over the firing pin hole). Rather than do a new firing pin stop plate, I decided to stop chasing best guesses mainly because I was blowing time I did not have to spend. The pistol was under warranty so feeling both stupid and defeated, I finally got an RMA to send the pistol back.
No, I’m Not Incredibly Patient
In the meantime, I bought a 56645 Pro Ultra Match HC and it has worked great – no problems at all. I was able to work out the details on the mags. Now, I am not patient so I actually ordered a second 51679 Tac Ultra that I looked at, cycled a few rounds through but really didn’t use a great deal – my primary go-to test platform was the 56862 … until I decided to take some photos about the RIA 9mm A2 HC pistols and looked at the 51679’s extractor.
The second 51679 is at the top and the 56862 Tac Ultra Match is at the bottom. The Match pistol has nice checkering on the front of the grip, the top of the exposed barrel is a grey matte finish and has a target rear sight.
“You’ve got to be kidding me” – I thought to myself. Inserting a choice F bomb of course. The extractor in the brand new 51679 that probably has less than 100 hand cycled Zoom snap caps through it was almost completely broken off other than a little tiny nub on one end. WTF?!?!
I was happily taking photos for a blog post when I saw the silver grain of the busted extractor. Yeah, I was swearing up a storm. Really?
Okay, two 51679s bought from different vendors off Gunbroker about a month apart both having extraction problems …. wow. I’ll be honest – I’m disappointed. RIA 1911s are econobox models but they usually work – so, no, I’m not remotely happy not to mention jumping through hoops waiting for ever for their customer service to respond. I did learn a bunch though and will share with you what I did and what you can do if you want to.
Metal Injection Molding For Extractors Isn’t The Best Choice
The problem is that to keep costs down, Armscor, who owns the Rock Island brand, make the ejector using Metal Injection Molding (MIM). If you search on the web, you will see a ton of guys arguing against the use of MIM in high stress parts. As I just learned with extractors, it’s not the strongest manufacturing approach – making them from forged high-quality steel is a far better idea.
I removed the extractor from the pistol and zoomed in as best I could to get you this photo. You can see the grainy structure that is a signature of metal injection molding. That nub at the top right edge in the photo was just enough to yank the case out of the chamber … sometimes.
Okay, if you get a new RIA 9mm pistol, check the extractor out of the box. Clean and lube it, go to the range and keep your eye on the extractor. If it breaks you have two options – send it back to Rock Island/Armscor for a RMA repair or do it yourself. Heck, you could even just replace the extractor yourself before you have a problem if you want to.
I Decided To Replace the Extractor Myself
I learned a ton on that first pistol plus I had all of the tools and spare Wilson Combat extractors. I just needed to trust in my abilities a bit more and try it again. If there’s one thing I know about myself, it’s that I am persistent and don’t give up easy. With this in mind, I dove back in again with far better results.
The top is the failed Rock Island 9mm ejector and it is a series 70 design. The lower extractor is a state of the art forged 9mm extractor from Wilson Combat. It is a series 80 design but will work just fine in a series 70 pistol.
Fully Machined from S7 shockproof tool steel with a tensile strength of 275,000 PSI
Optimized hook design for maximum strength and case rim contact
Hook location tolerances held to +/- .001″
Radiused corners for extended life and smooth feeding
Enhanced design holds tension longer over factory part many times over
Heat treated to optimum hardness and cryogenically treated
Guaranteed for life against breakage or we will replace at no cost to you
Note: I went with a series 80 extractor because they were in stock even though the RIA pistols are based on a series 70 design. You can use a series 80 extractor in a series 70 pistol but not vice versa. You can get them from Brownells, Wilson directly and other places.
Recommended Tools
You don’t need specialized tools but if you can afford them, I would highly recommend the following:
Weigand’s extractor tension gauge set – let’s you precisely dial in extractor tension. Note, I did add a brass s-hook so I can grab it with a trigger pull gauge more easily.
Lyman – Mechanical Trigger Pull Gauge – even though I have some digital trigger pull gauges, I lacked a mechanical unit and there are times where it is handy to see an analog scale changing vs. flashing numbers you can’t read so I bought it regardless. Yes, if you have a trigger pull gauge already, you can use it.
The long angled tool is the 1911 Extractor Tool from Brownells and totally worth it in my opinion. The long angled end lets you reach into the slide and push extractor back and then down into the hole for removal. The other end is perfect sized for pushing down the firing pin to aid with the removal and installation of the firing pin stop. Note the blue A-Zoom snap cap – that is the color of their volume packs of rounds. Exact same material and tolerances – just a different color.
The silver block with the red handle is Weigand’s tool for adjusting extractor tension. The big orange thing is the Lyman mechanical trigger pull gauge. The brass plate is the gauge with a brass S-hook that I added. The gauge is sold as a set and each end is for a different caliber. The hole you see is actually for lining up on the firing pin hole – I just added the S-hook on the .38 end because I don’t have any plans to shoot .38 Super. Note, the small blade screw driver makes it real easy to nudge the firing pin up or down so the firing pin stop plate can be pushed into position.
Make sure your pistol is unloaded – that the chamber is empty and a loaded magazine is not inserted. In short, work safe. Also, do not use live ammo for testing – use snap caps.
Let me give you an overview and then a couple of videos to watch:
Remove the slide
Remove the firing pin stop plate by pushing down with the straight short end of the extractor tool and then slide the plate off. Be CAREFUL that the firing pin and/or spring don’t come flying out as you remove the plate.
Push the extractor backwards by pushing the head of extractor backwards down the hole out the rear of the slide
Insert the new extractor and line it up so the stop plate can be re-inserted. It needs to line up with the top and bottom of the stop plate groove and it needs to be straight up and down parallel to the sides. You don’t need to install the firing pin and spring until you are done.
Insert the Weigand gauge and pull it out using the trigger pull gauge to find out how many ounces it takes.
Use the Weigand tensioning tool to increase or decrease the tension. I dialed mine in to 28 ounces (1.75 pounds).
You can try testing feeding and extracting dummy rounds to see how it performs. The extractor should maintain control until the extracted dummy round hits the ejector.
Once it is dialed in, you can then re-install the firing pin return spring, lube the firing pin and reinstall it also.
There’s a trick to the plate – wiggle it in and push down the firing pin enough to get the plate to sit on the “shelf” at the rear. You can then maintain pressure on the plate and use the other hand to use the extractor tool to push the firing pin down far enough and hold it there while you push the plate back into place.
More Details
Wilson has a video on how to change to their extractor and a bit about setting the tension:
The following is a video of Jack Weigand explaining how to use his extractor gauges and tensioning tool:
Adjusting The Extractor Landing Pad
The most detailed post and guidance in general about extractors that I read is here – and if you read down, you will get to sections/replies about 9mm extractors. One thing you will notice discussed is reprofiling the “fitting pad” to better fit the radius of the extractor hole. I stoned and polished the fitting pad to be more rounded but that was it. I put more emphasis on getting a weight in the 25-28oz range and did do that after may 3-4 tries.
Pulling the gauge out the final time was about 1-3/4 pounds which is 28 oz. In testing the pistol, extraction was just fine.
Was The Match Pistol Higher End?
I wondered if maybe more care was put into the match pistol. There are some nice perks in terms of features but the trigger feels about the same between the two pistols. I’ll write up something more detailed down the road – for now let me just say they pistols are not night and day different in terms of how they feel with cycling the slide or pulling the trigger.
In terms of pricing, there’s not a huge difference on Gunbroker. The first 51679 was bought on 3/5/22 for $819.99, the Match pistol was $899.00 on 3/25/22 and the second 51679 was bought on 4/3/22 for $899.00 also. In writing this, it’s surprising that the Match wasn’t $100-200 more on the street but it wasn’t. If you look at the manufacturer’s suggested retail price (MSRP) – Armscor did set the 51679 at $899 and the Match 56645 at $1099. In other words, Armscor was hoping the Match would command a premium.
You can find the 51679 pistols right now with a bit of hunting. The 56645 match pistol is challenging to find as it seems to be a bit more rare now but it is out there too. I’d tell you to get the 56645 Pro Ultra Match HC if you can find it. As you can imagine, I’m not too thrilled with my 51679 experience right now and there is little to no price difference *if* you can find one.
Conclusion
I’m not sure what to tell you about what happened – I only have data from two 51679 pistols and one 56645 pistol. It could just be really bad luck – neither of my current 10mm pistols have given me any trouble and the 56645 Pro Ultra Match has been fine so far as well although I have only cycled maybe 500-600 snap caps through it so far.
The first 51679 had something going on that I can’t explain and am waiting on Armscor to fix it under warranty. It certainly was not a broken extractor. For the second one to have a snapped extractor claw with so very few rounds – I guess that highlights the limitation of MIM and that forged extractors are better – there’s a reason why Wilson’s Bullet Proof extractors have such a good reputation.
6/22/22 Update: RIA did a warranty repair after about 4-5 weeks. All they told me was that they confirmed the extraction problem, fixed it and the pistol was fully operational now. So, I still don’t know exactly what happened but at least Armscor/RIA stood behind it and made things right.
We’ll see what Armscor comes back with regarding the first pistol and I’ll report it here. I guess the big thing I want folks to know is that changing an extractor is not an arcane black magic endeavor. There are tons and tons of videos and posts that you can read. At some point you just need to wade in, give it a go and learn.
My other lesson learned is that don’t replace a busted Armscor extractor (MIM) with the same thing. Upgrade. I decided to go with Wilson Combat due to all the good reviews I read and would recommend that.
I still have a lot to learn about 1911s and don’t claim to know much. I’m really focused just on the mags but I hope this helps out anyone who reads it.
A Stunningly Good 1911 Reference Book Recommendation
6/29/23 Update: The match 9mm MIM extractor is still doing just fine and I have no idea how many thousands of times it has been cycled. The Wilson is doing great on the other pistol also.
12/17/22 Update: I’m somewhat surprised – the original MIM extractor in the Match 9mm is still doing just fine thousands of rounds later. So is the Wilson but I am not surprised about the Wilson holding up.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Ok, now that I have your attention with that title, I often get asked how to fit the various furniture parts of an AK to a given rifle – the gas tube cover / upper hand guard cover, the lower handguard and the buttstock. Most of the work can be done with a secret tool – a slightly modified single cut file and patience.
Most of the time with new furniture, you need to remove material and a single cut file works great for that. With the pictured PSA Redwood furniture set, I needed to think the half circle ends of the gas tube cover and I also had to fit the lower hand guard just a tad.
This is an 8″ single cut Nicholson Handy File that I bought many years ago and modified. I prefer a single cut file so I can go slow and not remove material too fast. Just remember an old saying – “it’s easier to take more material off than it is to put it back on.”
Now here’s the trick to really make this tool work for fitting furniture – grind one thin side smooth – literally get rid of the file’s teeth. This will allow you to quickly and easy run the file right against a raised edge, such as the lips of the gas tube cover, and remove material that you want while leaving the raised edge untouched.
Any brand of file ought to work. Some come with a “safe” edge meaning no teeth. Just test it first to see if any of the teeth from the perpendicular surfaces protrude enough to cut – if they do then knock them down so the smooth surface can ride on the material you are working on with zero cutting happening from that side.
I used my big belt sander and removed all the teeth from this one edge and ensure it was smooth. I purposefully left the teeth on the other thin edge.
Just be patient – look at where the furniture is binding, remove a small amount and test the fit. In general, you want AK furniture to fit snug vs. rattling around. Patience is the key though – don’t rush things. Just keep inspecting, filing off a bit and testing over and over.
So everything is installed, nothing broke because I rushed and the end result is nice snug fitting furniture.
Summary
A single cut file with one thin edge ground is the secret tool but you need to be patient when using it. I can’t even begin to guess how many lower and upper handguards I have adjusted with this file over the years plus I have learned a bit more patience as well.
I recently wrote about my Glock 29 Gen 4 and carrying it while hiking. A fellow asked me for more details on what I was using to carry it ands I told him I was using a 5.11 Select Carry Pouch – which is a fancier product name than “tactical fanny pack”. Joking aside, it really does a great job.
Ok, why the fanny pack? I’m on the heavy side and when I go hiking I am usually wearing shorts or sweatpants depending on the weather. Jeans are a “maybe” but I’m at the point in life where I go for comfort. I’m sure not dressing to impress anyone.
If I am wearing jeans and can use a pistol belt then I might use a holster but it depends on the weather. I’d rather conceal the firearm vs. dealing with people staring at my pistol as we are walking along. If I am wearing a coat or open long sleeve shirt then I might wear a belt holster. My preferred option is a Galco shoulder holster.
What I find is that I am often hiking or fishing and it’s too hot for a coat or loose shirt so I had to figure out what to do. I knew a fanny pack might look goofy but would work great if I could find the right one given how it could distribute the weight while concealling the pistol.
The Glock 29 gen 4 is relatively compact but it is not tiny by any means and once you load it down with 10 rounds of 10mm and have a couple of back up mags of 10mm, you’ve got a lot of weight to deal with.
A couple of years ago I ordered in some different models of the no-name import fanny packs that claim to support concealed carry and the quality was very disappointing – light fabrics, lousy sewing and poor zippers across the board. They weren’t an option for the Glock 29 gen 4 because they would never hold up to real world use.
There are a lot of carry options out there but I think I can make the blanket generalization that you get what you pay for – you need a well thought out design, rugged materials, a rock solid zipper and these aren’t cheap.
One company I like is 5.11. Their gear is reasonably priced and has never let me down. Yes, I am getting to my point – their 51804 Tactical Select Carry Pouch is very well made, looks good and doesn’t attract attention. It’s a tight fit but I can squeeze in my G29 with the Pearce magazine base plate so I have a place to rest my pinky finger, two more 10 round mags and a Streamlight TLR-8 that I keep in a side pouch.
The main pouch is a tight fit but I can squeeze in what I need. It’s symmetrical so you can insert the pistol facing either left or right. I have mine set up to rip open with the left and pull the pistol out with my right hand.
Here’s another angle. When you have the load shown, there is very little extra space.
I keep a TLR-8 stored in the right side pouch. It’s a snug fit also.
They call that thing sticking up a “hot pull strap” that you can use to yank the compartment open in a rush. Now that folks is one heck of a good idea. If you are in a hurry and the adrenaline is kicking in, fumbling with a zipper is going to suck. Grabbing that pull strap and yanking open the pouch is very do-able.
To give you an idea of real world sizing, a G29 Gen 4 is about 7″ long andjust over 4.5″ with a regular mag. Let’s just round that to 5″ in my case with the Pearce base plates. You can see in the photos that it is a snug fit. My Sig P365 fits no problem.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
I genuinely like the Rock Island Armory (RIA) double stack 10mm pistols. I jumped into the deep end of the pool and started converting some really cool Mec-Gar Para P16 mags for use in the 10mm and .40 S&W pistols for folks who need either 10 or 15 round limited pistols due to unfortunate magazine limit laws where they live. The feed lips must be shortened and reprofiled to work reliably in RIA double stack pistols.
I’ve written about the conversion and you can click here to learn more but I didn’t really show a lot of photos of the different Dawson Precision base plate options. In addition to changing the feed lips, you have to replace the plate because it literally will not fit in the funnel – it’s a show stopper plus it really does need to be longer to allow for positive seating of the mag in the pistol. You could grind the OEM plate down but then you would need to glue/add material so you can fully set it – note, if you do that, leave a hole so you can unlock the plate in the future.
This post also applies to folks who own the RIA A2 HC double stack 9mm pistols. The same base plates are used on the magazines for your pistols as well and the magazine capacity is limited to 15 rounds as a result.
At any rate, here are a number of photos showing the Dawson Precision base plates and get a better idea of their different thicknesses relative to each other as well as when fully seated in the pistol:
The Dawson plates are machined from aluminum and their sizes are how much thicker they are than the original Para P16 base plate shown on the right. The bottom left Dawson plate is their +200 model and the one above it is the +300.
Here are the three Dawson plates next to each other on our converted P16 magazines. The +100 is on the left, +200 in the middle and +300 on the right. They increase the height and weight of the mag but do not increase the capacity.
With our 3rd Gen mags, Mec-Gar started using the left polymer plate and it works great in the RIA pistols. Both it and the +100 Dawson plate sit flush in the RIA mag funnel.
These 15 round windowed mags all have +100 Dawson plates.
This is a +100 Dawson plate in my RIA 52009 Ultra HC 10mm pistol.
This is the +200 base plate.
This is a +300.
This is the 3rd gen polymer Mec-Gar plate that comes on the 10mm/.40 S&W mags for reference. It fits the RIA funnel just fine.
I do need to note something – out of the two to three hundred converted P16 mags I sold, two buyers had pistols where the distance from the mag catch to the bottom of the funnel would not allow the mags with the Dawson plates to fully seat. I gave them full refunds and don’t know if the issue was the mag catch or the fitment of the funnel to the pistol. Again, only two gentlemen out of hundreds. I really do not think it was an issue with the base plates just to be clear – just stacked tolerances going in the wrong direction.
Summary
Dawson Precision makes great base plates for Para P16 and P18 magazines that enable them to fit in the funnel of most RIA high cap 9mm, 10mm and .40 S&W pistols. They come in three sizes and you can choose based on your preference.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at in**@ro*********.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
