Sick and Tired of Mosquitoes? How I Got Rid of Them With Talstar P Pro

Our home is in a former swampy area that was drained in the 1980s and a subdivision built.  In short, you dig down and can hit water fairly soon – usually within 10 feet.  At any rate, we’ve had a very wet spring and summer and had standing water in our lawn until late-June and the mosquitoes have been the worst I ever recall in the 20 years we’ve been here.  We could not stay out at night or we’d get attacked unless we hosed ourselves down with Deep Woods Off.  In short, something needed to be done.

This hedgerow is right by my garage and ensured the mosquitoes had a perfect base to attack me from and rings our property:

When I was at Ace Hardware, I saw Off! brand’s Backyard Pretreat that was supposed to kill mosquitoes and leave a residue to repel them.  I thought they would know what to do given their experience – as it turns out, this product is a rip off.

I’m sad to report that after three jugs of this stuff and my getting bit over and over while applying it, I can’t say it did anything at all even several days later.  I really had high hopes – I dragged a long hose all over the place spraying stuff down over and over with no noticeable improvement.

On Facebook, I posted my woes with Mosquito control and a friend, Allan, suggested Talstar P Pro and a Ryobi cordless electric sprayer to help with evenly spraying a ton of solution.  I had never heard of Talstar so I did a search and it is very well regarded.  Allan told me they live on a wooded ravine and he’s been using it for 10 years to control mosquitoes and it worked exceptionally well for him.

Talstar P Professional

Every once in a while on Amazon, you see a review score that is mind blowing.  FMC’s Talstar P Professional 96 oz has 2,263 customer reviews and a combined score of 4.6 out of 5 stars.  That is one heck of a score and is only possible if something works really, really well.

5/21/2023 You will no longer find it on Amazon – you need the liquid Talstar and I tend to find eBay the best source to buy it. Click here for a current list on eBay.

So, based on what I read and Allan’s recommendation, I ordered the 96oz bottle.   I then read up on the Ryobi sprayer.  It gets good reviews, uses the 18volt Ryobi batteries (it comes with one battery and a charger) and it has a three year warranty.  I ordered it off the Home Depot website [Click here]  as they had free next day home delivery and since I had to wait for the Talstar, I figured it would save me a trip.

Note:  You can use any pressurized sprayer you want – I have 1.5 acres and knew I would be applying gallons and gallons of it.  My shoulders and elbows hurt enough as it is and I didn’t want to incur the repetitive stress.

The sprayer arrived the next day and the Talstar the day after.  While I was waiting, I went to the FMC website to read up on Talstar to make sure I understood how to apply it plus I peppered Allan with his experience.

I would recommend you go to the website [click here] as they have recommendations on best practices for mosquito management and Talstar P Pro is actually interesting from a chemical perspective.

The active ingredient is Bifenthrin, which is similar to the chemical extracted from Chrysanthemums to kill insects.  Here are two links so you can read more at the National Pesticide Information Center.the user guide for the Talstar P.

Ryobi Model P2830A One+ 18-Volt Lithiu-Ion Cordless 2 Gallon Chemical Sprayer

Here are photos of the sprayer.   I charged the battery and screwed in all the fittings.  They are all lose so be sure to do that.  I didn’t have any loose plastic in the tank but I did rinse it out just to be safe.

Application

After reading the user guide, I planned to use one ounce of Talstar to one gallon of water to ensure I had residue to continue killing mosquitoes.  Since it was a two gallon tank, I increased it just a bit to 2.5 ounces per two gallon tank.  Note, a real nice perk is that the tank lid is a measuring cup!  I would use it, rinse it out and pour the mix into the tank before filling it with water.

While doing the work, I wore Nitrile gloves just to avoid contact plus I was constantly adjusting the sprayer tip from coarse mist to a stream to try and reach back over brush, through leaves, etc.

FMC recommends spraying at night or in the evening when mosquitoes are active.  I was busy the first night so I did it the following morning at 7am.   I mixed up two gallons and started spraying around the house, pool, garden and so forth.  I hosed down the bushes, the walls of the house and under the eaves.  I also sprayed the hedge – first using a coarse spray on all the brush, leaves and ground.  I found adjusting the tip to a stream was handy to penetrate the brush and also reach further back.  I’d just come back to the hose and what not and mix another two gallons of spray (2 gallons water and 2.5oz of Talstar) and kept spraying.

It took me aboput 30-45 minutes and 8 gallons, or four complete tanks, to do most of our yard.  I skipped probably a half acre of grass starting about 100-150 feet from our house but I did all of the hedge row, bushes, etc.  I was pleasantly surprised that the 2.0Ah battery was able to do the whole yard.  When I finished the first batch, I did plug the battery in and let it charge.

That night I still saw mosquitoes, but fewer of them, and applied a second dose around 7:30-8pm.  Same procedure – 8 gallons focusing around the house, all the bushes, etc.

Results

The next morning – no mosquitoes.  Whoa!!!  I did not see one single mosquito all day.  That night I worked on cars without being attacked!  I did so again yesterday and just had breakfast with my wife in her garden — something that would have been next to impossible.

I’d say the spray got a good number of them but when they landed in the residue, that got rid of a ton as well.  In other words, you might see a bit of a delay from dose to noticeable reduction.

In four weeks, I am going to do it again.  Even my wife, who always groans at me and my tinkering, was impressed and told me to make sure I apply another dose before the first one wears off!

It’s really not that expensive in the long run.  The bottle holds 96oz.  I use 10oz per 8 gallons (4 batches x 2.5oz/batch).  If I apply it twice per application, that means I’ll use 20oz per time, which means I’ll get just over 4 complete applications (so about four months of protection).  At $35/bottle, that’s about $9/time plus however you want to account for the sprayer.  For me, it’s worth it.  My wife really reacts to mosquito bites plus we can enjoy being outside again and I can go back to working outside without getting attacked.

I’d highly, highly recommend you skip the ripoff gimmicks and temporary fixes.  Spend the money and get Talstar Pro and a spray bottle (if you don’t have one).  It made a world of difference for us and wanted to spread the word that this stuff really works.

May 21, 2023 Talstar is no longer on Amazon but there are tons of sellers on eBay – click here to open eBay and see the latest Talstar P Pro liquid listings..


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Polish Build Runs Like a Top

I will do a more In-Depth series of posts about building this rifle later. It is a Polish WBP kit l at the heart from arms of America with a Polish cold hammer-forged Barrel. The internals are installed in a Childers Guns receiver. The trigger is from ALG and I absolutely love it. I kid you not, this is now the only trigger I will use because it is so good.

The muzzle brake is a JMAC RRD-4C and boy does it eliminate muzzle climb. It made the rifle very controllable even during rapid fire.

The optic is a vortex Crossfire. The furniture is original polish Beryl with one of our US made 922r Beryl grips.

In the following video, this is my buddy Niko doing the shooting and while he is tall and wiry you can tell that the full-power Golden Eagle hundred and twenty four grain FMJ 7.62 x39 round is not moving him much at all.

The build turned out to be extremely reliable and accurate. Like I said I will post more details later but I’m thrilled with the results and had to jump the gun and share this!


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I Loathe Telemarketers, Robo Callers and Unwanted Callers

Simply put, I hate telemarketers and robo callers and unwanted callers. I pay for my phones and they should have no legal right to intrude on my time. The phone will ring and I will go rushing to answer it or stop working on whatever project just to find out it is an unwanted caller. It is so annoying!!  Robo callers are automated tools that call you and then a recording kicks in – you can’t even yell at them!  Worse yet, the technology allows the telemarketers to call thousands of people per day if they want.

Caller ID helps a bit – the land line rings but I don’t pick up unknown callers, names I don’t know, or when the display just lists digits. I wish the phone didn’t ring at all but traditional home phones aren’t smart.

What really irked me was that they started calling my mobile phone more and more these last few weeks. But wait… I have a smartish Android Note 5 phone. Is there an app that can help? Yes, and it’s called “Should I Answer?”

Surprisingly, it is wickedly good and free. I’d pay for this!! Look at the above stats – a million downloads and an aggregate score of 4.8 out of 5.0. That is remarkable.

Basically, it rates each caller and warns you based on a shared community database plus you can store your own private info. I gleefully contribute to the community’s database to warn others and exact revenge on unwanted callers interrupting me.

To install it, download it from the Google play store. Answer yes to the permission prompts.

As you can see above, you have a ton of control via options you can set. I turned on the options to download reviews and to flat out block negative calls either rated so by the community or by me locally.

It works very well and has decent help under the “About” tab.

Here’s a screenshot of me negatively rating a robo caller trying to sell insurance:

I think the app is great and have been using it for about a week. If you are fed up with unwanted callers, definitely check out “Should I Answer?”


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Valvoline Max Life ATF Works Great in 2002 Toyota Camry XLE

We are a Toyota family and most of our cars were bought either used or very used from private parties.  At any rate, a few years ago I bought a 2002 Toyota Camry XLE with a 4-Cylinder engine.  The other day my older daughter said it was making a funny noise in reverse so I checked the dipstick.  Wow.  Not only was it low but the ATF looked awful.  For comparison, the below photo with the brownish ATF on the white paper towel is on the left and brand new ATF is on the right.  Wow!!  (Yeah, I wrote wow twice because I was stunned.

So I told my daughter to ride with her sister in our old 92 Corolla and that I needed to work on their car.  First thing I did was to look at the fluid a couple of times – it was brownish but not black, no metal flakes and no bad smell.

In reading the manual, Toyota wrote that the transmission fluid should be good for the life of the car … right.  I guess it depends on how you view that, or at least how they view it.  I’m sure I checked the fluid when we got the car and it wasn’t this color but I’m not in a habit of checking it regularly unless I see drips or a puddle under a car or truck.

This car had almost 195,000 miles on it and we put about 50,000 of those miles on it.  I figured a change was past due.  So, before I did anything, I decided to do some reading first.

Picking Valvoline Max Life ATF

I knew there were a ton of different automatic transmission fluids (ATF) out there and that getting the right one was key.  The transmission was designed to use Toyota ATF T-IV and there are different brands that claim to meet the spec.  The problem is that the wrong one can cause headaches.  One particular formulation kept coming up as I read about what others used – Valvoline Max Life ATF:

Note in the next photo you can see that Valvoline says this can replace Toyota T-IV as well – it’s not just guys on the Internet.  By the way, if you feel uncomfortable with what I am saying, definitely do your own research and you’ll see tons of favorable posts about using this fluid.

Okay, so I bought two gallons of the above.  The automatic transmission in the car uses about 4.1 quarts.  I used a 10mm allen bit in my Onyx 3/8″ impact wrench and drained everything I could from the pan.  I then put the plug back in and added two quarts of fresh Max Life and let it run for about 30 seconds and shifted through the gears (I was up on 6 ton jack stands with rubber wheel chocks and the parking brake on).

I then removed the plug again and drained the fluid.  I then removed the return line, started the car for maybe 30 seconds if that – I turned it off when nothing else was coming out.  I then buttoned it all back up.

In  theory the transmission was empty.  I’ve had issues in the past where I assumed that was the case but it was not so I didn’t want to assume anything.  I added two quarts and moved it to a perfectly flat spot on my driveway.  I could just barely see a hint of ATF on the tip.  I added a bit more to get it short of the cold empty mark.

I don’t trust the cold measure on the dipstick.   With an automatic transmission it must be up to its operating temperature to get a good reading in the hot zone (the bottom mark is for cold is a ballpark – get it hot and then test as you absolutely do not want to overfill an automatic transmission).  As it gets hot the fluid expands hence my wanting to know at temperature where I was at.

How to Check the Automatic Transmission Fluid Level

Now, to check the ATF level, Toyota does not tell you in the operator’s manual and I frown on that.  With the car flat, let it idle (or drive it 10 miles if you have fluid in it – I had an unknown level so I didn’t want to get on the road) and let the engine and transmission come up to operating temperature (158-176F).  Then, with your foot on the brake, shift the gear selector from park through all the gears, stopping at each one and then back up.  With the car idling and the transmission in park, check the dipstick.

To make sure the engine and tranny were hot enough, I used my BAFX plug in OBD II probe that connects to the Torque app on my Android phone via Bluetooth.

I kept adding smaller and smaller amounts of ATF and moved the selector lever per the above before I would test the level again.  I got it close to full in the hot range and then stopped.  As mentioned, I did not want to go past full.  By the way, when you are reading a dipstick with during filling, you must wipe it off each time to get a good reading and you may find that you get a better view of the fluid level on one side or the other of the dipstick.

In case you are wondering, I did not do the transmission filter.  It would have taken a ton of time and I figured I would start with the fluid and see what happened.

The end result – it shifts beautifully.  I could not be happier — even my wife thinks it shifts smoother and feels better.   To wrap this up, I wrote this post in case one of you has questions about what transmission fluid is a good substitute for Toyota Type T-IV, and also how to properly check the automatic transmission fluid level.

6/1/2019 Update – Still no problems.  Our 1992 Corolla sprung a leak in the transmission fluid cooling line so I had to both install some fuel like to patch the corroded line plus I had to refill the transmission fluid.  That was about 2-300 miles ago and that is working fine too.  Bottom line,  I do think this fluid performs just fine in place of Toyota Type T-IV fluid.

9/10/2018 Update – The Camry XLE has been on a number of 200-400 mile highway road trips at highway speeds and shows no signs of shifting problems.  The family agrees the car shifts smoother.  I have now replaced the ATF in our 2004 Solara SLE and 1994 Corolla with Max Life ATF also and all are running well.  The Solara has close to a 1,000 miles on it now.  I’m very pleased with Max Life and will continue using it in my Toyotas.  By the way, I now use an EWK Fluid Evacuator for getting the ATF exactly where I want it.  Here’s the post about that tool.

2/23/2020 Update – No problems at all with any of the vehicles we’ve used Max Life ATF in.  This includes a 2008 Toyota Highlander.

 


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Very Compact Astro 1828 ONYX 3/8″ Nano Impact Wrench Is Great For Tight Quarters

This past winter I had the fun of changing the starter motor twice in 15 degree weather in my Landcruiser.  It was a bear getting to the starter bolts with my full size Ingersoll Rand 1/2 Thunder Gun.  It’s an awesome impact wrench and I had trashed a few cheap Harbor Freight ones before taking the advice of my friends and buying it.  To make a long story short, with a long extension and a universal joint, I was able to get the two bolts out.

While working on the truck, it struck me that I really needed a compact impact wrench to get into tight spaces.  I did some digging and found the Astro 1828 Onyx for 3/8″ impact sockets.  I figured I wanted small and probably would not need 1/2″ most of the time.

These next photos show how much more compact the Onyx is compared to the big Thunder Gun:

The little Onyx gets great reviews – currently 4.6 out of 5 stars on Amazon with 148 reviews.  I bought it and a Hot Max 28083 Swivel adapter at the same time.   It arrived in a nice little cardboard box from Amazon and I promptly put good Teflon tape on the swivel’s fittings, installed it and then a Milton M-style plug.

So far, both are holding up great in my home garage use (I’m not a pro mechanic – more like a shade tree one with ADD and sleep deprivation).

What I find interesting is that it is a torquy little beast.  They claim 450 ft/lbs.  I have not bothered checking using a calibrated torque wrench but I can tell you it’s done a great job so far.  For big stuff / tight stuff, I still go to the Thundergun with its 625 ft/lbs of torque.  The Onyx is more of a special purpose tool for me.  By the way, if you notice it is shiny above, I had just used it to remove the drain plug off a 2002 Camry’s transmission.  They are about 18mm and use a 10mm Allen bit to come off.  My 10mm Allen bit is for a 3/8″ drive so I just stuck it on the Onyx and it whipped it right off.  Reinstalling, I set torque at 1 out of 3 and then checked it with a 3/8″ drive ratchet wrench after — it was in there solid.

In short, I am happy with the little Nano and Hot Max swivel combination.  I definitely still use my Thunder Gun for wheel lugs and big fasteners but the Nano is now my go to for tight spaces.

October 2018 Update:  I had a problem with the hog ring clip at the end of the nose.  It bent and would no longer hold sockets properly.  It took a while for the maker to get me the clips but they did take care of me and gave me a few spare.  Click here for the whole story.

 


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Check Out Jeff’s Cool M72B1 Built by Two Rivers Arms With Our Handguard Set

Check out Jeff’s cool Yugoslavian M72B1.  It was built by Two Rivers Arms and he used our custom Yugo M72B1 handguard set.  Our handguards are made from a special temperature resistant glass reinforced urethane, don’t require the ferrule, and enable a sure grip.

If you are interested, click here to learn more about our custom all polymer Handguards.


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The Hatsan Gladius Long Precharged Pneumatic (PCP) Air Rifle and Hill Mk.4 Air Pump One Year Later

I’ve had this Hatsan Gladius Long PCP rifle in .22 caliber and Hill Mk.4 air pump for just over a year now and am very pleased with it for pest control. I have a few observations to share but first if you wish to read any of the original posts, here are the links:

At any rate, I’ve probably put about 750-1,000 pellets through this at least. It really likes the JSB Exact Jumbo Heavy Diabolo 18.13 grain pellets. I can shoot overlapping clusters of holes at 30-50 feet over and over. I have some other weight pellets but haven’t had time to test them. I’m hoping a lighter weight will shoot flatter, expand faster and reduce over-penetration.

From a pressure perspective, the sweet spot seems to be if I keep the cylinder between 170-195 bar, just short of 200. At 200 the first round is a flier. I am not running a regulator on this cylinder. My second cylinder with the regulator is leaking out the end due to some problem from manufacturing that I need to track down some day. It’s not on my top 2,000 list of things to do.

If I had it to do over again, I would not have bothered buying the spare cylinder. I am using this air rifle for pests – mainly squirrels, rabbits and ground squirrels. I can get 16-20 lethal accurate shots and then I refill using my Hill air pump. I never use the second cylinder not to mention the oddball leak out the very end (it’s not an o-ring).

The scope and ring combination has held up great. The scope has held zero. I thought I would use the cheek riser and butt pad adjustments more but haven’t needed them much. I think the cheek piece is up just a hair.

You know, the magazine design is excellent. Some air rifles (Marauder) have real crappy plastic mags and these are metal and easy to fill.

The Hatsan is relatively quiet. I shoot with power setting #4 most of the time and it will drop squirrels and rabbits no problem. There is definitely a muzzle report and I have to worry about over penetration. It blows right through squirrels. On #3, it is remarkably quiet but I have to be very careful with shot placement on a squirrel within 50 feet and I will not use #3 on a rabbit. So most of the time I am on #4 and am very, very careful of what is behind the target. My preference is a tree or something else solid.

I really like the trigger and the safety. The trigger does the job – I haven’t checked the weight but I am able to stay on target with even ground squirrels. The safety lever in the trigger area takes a bit of getting used to but once you do, it is very easy to engage, disengage or check status.

Follow up shots are really nice to have. Up until the Gladius, I only had single shot air rifles. Now I have up to 10 rounds and a side cocking lever that you can quickly actuate while keeping the scope and your eye on the target.

The Hill Mk.4 pump has held up very well. Depending on my mix of #3 and #4 power setting shots, I can top off the cylinder in 25-45 pumps after 10-20 rounds. Because I fiddle with the power settings and I don’t always wait to shoot all 10 pellets I can’t tell you an exact count. By the way, it’s hard to tell if you are down to the last pellet so when I get down near the end of pellets, I will top of the magazine and either top of the tank then or after one more magazine of pellets.

I do periodically put silicone grease on the shaft of the pump and the Hatsan quick connect air fitting. I did find a little zip lock bag and keep the on the air fitting to keep it clean.

I bought this good sized container of silicone grease that is Mission brand and has worked just fine for me. I use it on the Gladius, car work, etc.

In summary, I still like it and am happy with the purchase. Power and accuracy – it’s a great combo and the Hill air pump lets me easily top it off whenever I want to.

6/29/2020 Update: Still very happy with both the Gladius and the Hill pump. We now have replacement fill-probe O-rings and caps to keep your fill probe clean. Click here to learn more.


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How to Adjust an Uzi Top Cover and Fix a Bolt Blocking Latch Problem – Uzi Would Not Fire

I built an Uzi a few months back and had trouble with it firing. A challenge a person has in the firearms industry is finding time to enjoy shooting! At any rate, I took it out the first time and had really light primer strikes with the firing pin – I’m talking you could barely see there was contact. So with the Uzi refusing to go bang, I had to do some digging.

I got into Uzis because of all the movies and TV shows in the 1980s. I decided to finally make one during the Winter of 2017/2018 and chronicled my efforts. The first time to the range resulted in a lot of good natured ribbing from my brother-in-laws as we could not get it to fire. We could hear the striker hitting real hard but no bang. Luckily I had other guns for us to shoot so I put the Uzi back in the bag and took it home where it then sat for a couple of months.

I did some digging and process of elimination and got it down to a few possibilities that in some cases I had already addressed. The following is my journey and what I did to sort matters out.

Lubrication

The Uzi closed bolt system is a huge chunk of metal and moving parts. When brand new, these parts still have their porous surface finishes on them, rough spots from machining and what not. You need to make sure everything is lubricated. Remember the old saying of it slides, use grease. If it rotates, use oil. I used Tetra gun grease on all sliding parts. I definitely wanted the big bolt body to slide easily. I also did put a light coat of Mobil 1 Full Synthetic 10W30 on the firing pin but really nothing rotates in there. In the trigger group, I used the oil also on all pivot points.

For me, I heard the need for this when I assembled the carbine for the first time. There was a very dry slow-moving sound and grating feel when I first ran the action during assembly. After lubrication it made a world of difference. I could feel and hear the striker hitting far harder. The important point is to lube your weapon. This definitely helped but it did not solve my problem in this case but I could tell it would definitely impact the operation of an Uzi.

Note: When I wrote this I was using Tetra Grease but I am now using Super Lube and it works fantastic on my Uzi. Click here for the write up.

Top Cover Bent

To be honest, I thought for sure this was going to be my problem after a fellow at McKay suggested I check it. I always thought the cover seated hard and I could not release the latch without a tool. As soon as the fellow suggested it I put one and one together – I bet it warped when the third party welded on the Picatinny rail section.

So, I did some digging on the web to figure out what to do. It turns out that you should be able to insert a 0.005″ feeler gauge between the bolt and the cover at the ejection port. Guess what? It wouldn’t go in – the first rib was tight and the far rib was impassable.

Before I go further – one quick comment on feeler gauges. Not all are equal. I have a few in my toolbox but the one I use the most is is this ABN unit shown above. It is accurate enough and it has a ton of gauges.   I point this out because not all of these gauge sets are complete. For example, several of my gauge sets jump as the manufacturer just included the blades needed for their equipment. I’d recommend getting a set with a lot of SAE and metric blades so you have flexibility. For the Uzi dust cover, you need the 0.005 and 0.015 gauges.

Next was to take some plywood stock I had lying around and make a jig. Basically you want two pieces of wood (any wood to avoid marring) that are the same height. The top cover will be suspended between them so you can adjust the cover either up or down.

I then made two little punches. One is made by gluing and brad nailing two pieces of 1/2″ plywood together so I could hit both ribs of the top cover at once. I also made a punch out of a single piece of plywood to adjust just one rib. I then got out one BFH (big frickin’ hammer) to whack with.

If there’s one thing I have learned – don’t go crazy hitting stuff. I put the jig right on the floor for good support and then the dust cover on it. Note that on the front part, I pushed the wood block back until it was supporting a thicker part and not just the thin neck.

So, I gave it a tap – not a very hard one with the thick piece on both ribs and took it over to test. It sure went on the receiver easier. Wow – it overshot the mark. I could now very easily insert the 0.015″ feeler gauge too. My understanding is that you don’t want it that loose or you risk the bolt jumping the sear and resulting in an uncontrolled mag dump. No joke – I don’t need that in my life ever.

I took the cover off the Uzi and flipped it with top now facing up and I tapped down even lighter. It really is surprising how easy the dust cover bends. I thought given the thickness of the sheet metal and the two ribs it would be much stronger but no.

I then took it back and installed it on the Uzi. It was starting to fit better. I definitely noticed that the ribs were different in terms of their gap so I switched to the smaller 1/2″ plywood punch and focused on one rib at a time. Tap and test, tap and test. If I went too far one way, I would flip the cover and tap it the other way.

After about 15 minutes I had it dialed in. The 0.005″ gauge would slide in and the 0.015 gauge met just a bit of resistance.

In working the action you could both feel and see the improvement. As always, there was a nice firm thud of the striker. Problem solved? No – it wasn’t. Argh. It was a definite improvement in operation but did not solve the problem.

The Uzi Bolt Blocking Latch

The web is a wonderful thing. I continued to surf around and read more about peoples’ experiences with Uzis not firing. Finally I read one that caught my eye – the striker has a particular orientation that must be followed to clear the bolt blocking latch. Wow. I knew I didn’t know about that when I installed it because the light strikes definitely indicated the striker wasn’t reaching the primer and this would explain a lot.

Okay, #31 in the above diagram is the bolt blocking latch and #30 is the spring. The bolt blocking latch’s purpose is to reduce (not eliminate) the chance of an out of battery firing. It does this by blocking the striker’s base. In normal operation, it is depressed and the notch in the base clears the latch as it travels forward to touch off the primer. Now there are three key things here and I’ll tell you what I messed up.

  1. The spring must be installed correctly.
  2. The latch must move freely
  3. The striker must be rotated such that the notch is in the right place- you can install it 180 degrees opposite.

So, your’s truly bombed the last one. I did not realize there was an orientation issue. The model B striker’s base is a half circle. The notch must be at the bottom to clear the latch. In this next photo, you can see I have it installed backward:

The following photo shows the installed Uzi bolt blocking latch. See how the bottom part sticks out? That is what will need to clear the notch when it is depressed during normal operation.

Note, I was working on a full size Uzi with a McKay semi-auto receiver and bolt group. Your bolt group may look a bit different.

When installed correctly, the striker sits in its seat and the seat sits in the striker guide like so:

You can see in the above photo how my latch was chewing on the improperly installed striker. As a visual reference for the correct orientation, see how the striker’s base is facing the part of the guide that has a depression in it. When installed, it will look like this:

You can see an immediate difference because when you depress the latch, the striker can fully travel forward and sticks out of the bolt face ever so slightly. That’s what we want!

Verdict – problem solved and fun was had at the range yesterday. The Uzi is still wearing in and smoothing out. We put about 100 rounds of 124 grain S&B FMJ through it.

The carbine was accurate and a lot of fun. If you didn’t read my other posts, there is a rifle length 16″ barrel hidden under the fake can. The weight of the carbine made it really soft to shoot so the girls and I had a lot of fun.

I am going to find a bit bigger optic for it – probably the Vortex Crossfire like I am running on my POF-5.

Regardless, I hope this helps you out!


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