Customizing An IWI Galil Ace Pistol – Installing a RS Regulate Handguard, SBA4 Brace & Vortex Optics

In my previous posts, I covered a bit of the history of the Galil Ace, did two posts about the differences between the Ace and an AKM that I observed (click here for the first and here for the second) and now that leads up to me making a few tweaks of my own to my 7.62×51 Ace pistol.

Moved to a SB Tactical SBA4 Brace

My Ace came with a SB Tactical SOB brace mounted on a proprietary IWI tube with a very heavy hinge. While the SOB is rugged, it is not adjustable so I installed and SB Tactical SBA4 brace.

The SOB4 brace is what comes with GAP51SB pistols. Palmetto had a great deal on this model and that’s why I bought it. If I could have found the pistol model without a brace cheaper, I would have done that.

Now some may wonder why I didn’t just file for a short barreled rifle (SBR) tax stamp and run a normal stock. I may very well do this in the future but I didn’t want to deal with it right now.

The Ace design allows for very easy changing of a rear block by simply driving out one roll pin. The block can the be lifted straight out and whatever you want installed in its place.

The Ace is resting on a green bench block and I used a roll pin punch to tap out that single pin. That’s all you need to do and then the rear plate of the receiver that holds the hinge, or anything else for that matter, will lift right out.
With the pin removed, it literally lifts out. Notice how the “plate” or “block” sits in a groove and that’s what provide the bulk of the strength. The roll pin is just stopping vertical travel and is more than enough.

Since the SBA4 is ATF approved, I opted for a modular adapter block from KNS Precision going to an Ace Limited (owned by Doublestar and not IWI) folding M4 adapter – the FSM-AR. Note, if you install a folder, buy one with the boss – the raised oval shape. It will fit into the groove in the KNS Precision adapter and make for a very solid connection.

This is the external face of the KNS Precision adapter. The groove is where the boss from the FSM-AR adapter will sit to limit movement. I’d recommend always getting adapters with the bosses unless you intentionally do not want them. The two screw holes allow for variations in mounting.
This is the back side of the KNS adapter. The one roll pin goes through one of the grooves to hold it in place. It is very nicely done – kudos to KNS Precision.
The KNS adapter just slides right in and is secured by the roll pin.
This is the Ace Limited (owned by Doublestar and not IWI) FSM-AR adapter. You can see the oval boss on the left part of the folder. This gets flipped over and screwed into the KNS adapter. Also, oil the hinge at some point before you close it. Sometimes they can be a bear to actuate when dry — personal experience talking there. Also, use blue Loctite on all screws or they will shoot loose.

Special note – the charging handle for my Ace pistol is on the left side. In my case, I was not worried about operating when folded. If you want to fire with the stock folded, you must go with a right side folding mechanism. If I had it to do over, I would have used a right-side folder but I simply used what I had in this case to cut cost plus I don’t plan on folding it much.

Here’s the Ace folder open to the left and the brace assembly does interfere with the charging handle. If you want a weapon that will operate with the brace folded, then go with a unit that folds to the right.

The SBA4 comes with a Mil-Spec receiver extension (buffer tube) and I used a generic castle nut that I had in my tool box along with an end plate that has hoops to connect a sling.

The SBA4 comes with a Mil-Spec receiver extension/buffer tube. You will need to supply your own castle nut .

I only use my Magpul wrench now for installing castle nuts as it enables a very positive/sure connection. I’ve done my fair share of scratching stuff with tools that used older methods and the MagPul is the way to go. I also used an automatic center punch to stake the nut.

For dealing with castle nuts, you simply can’t beat the Magpul wrench. I don’t use the combo wrench below it any more because I have scratched a ton of tubes accidentally with it.

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All in all, it was a very straight forward swap and allows for some adjustment now. In case you are wondering, the SBA4 is very beefy. I do not like the SBA3 as the end is soft and and ears that go around the shooter’s forearm just kind of bend and flop around. The SBA4 is very well done.

I definitely will SBR it at some point down the road but am happy with what I have for now.

Installed a RS Regulate GAR-9M-N Handguard

I was not fond of the original handguards and was pretty sure I would like the GAR-9M-N handguard from RS Regulate based on photos that Scot Hoskinson had posted. Let me tell you, it is a huge improvement. First off, it’s way longer and second it uses a M-LOK attachment method for accessories so you don’t have unnecessary rails bulking up the girth like you do with the originals.

This is the RS Regulate GAR-9M-N handguard for Ace pistols. It’s machining and finish are excellent. Installation was very easy.

Scot Hoskinson, the owner of RS Regulate, has put together a real nice installation guide with plenty of illustrations. The one thing I’ll tell you is that the two original handguard screws from IWI have threadlocker on them.

Just behind the mouth of the gas tube & front sight block is the mounting point that holds the two screws that retain the original Ace handguards. They do have threadlocker on them so warm them up to make removal easier.
I used a 1/4″ ratchet with a 4mm allen bit and the retaining screw on each side came right out. Note, you will see two rivets on each side – one rivet head is visible between the wrench handle and the bit. You don’t need to do anything to those. You just need to remove the two screws. You can see one of the above just forward of the bit.

You can heat them up and make them easier to loosen, use a 1/4″ ratchet with a 4mm allen/hex head to break the screws free or, what I did, was a bit of both. With the gas tube off and out of the way, you can see where the two screws mount on the barrel. I heated that up and backed them out with the ratchet pretty easily.

Once the screws are removed, slide the handguard forward slightly and pull the rear down. It will come right off.

From there, you basically pull the stock handguard down nose first and pull forward. Then, follow Scot’s instructions. You will need to pay attention and install a small spacer between the barrel mounting point and the handguard when you install the new screws. I applied blue Loc-tite and torqued them down to 25 in/lbs per Scot’s instructions. You also have to install one long screw at the rear that you’ll want to use the blue Loc-tite and torque to 25 in/lbs also.

The RS!Regulate comes with the three screws, two spacers and an allen wrench. I applied medium-strenght Blue Loctite and used my Vortex Optics torque driver to tighten the screws to 25 in/lbs.

The installation instructions where spot on and I did not encounter any surprises at all. The unit bolted right up with no fitting needed.
The fitment is really superb. Here the rail is sliding over the rear block and will be secured later with the long screw that squeezes the rail’s walls together further locking it in place.
I like the RS!Regulate unit far, far more than the original. It’s longer and it fits my hand way better in terms of girth.

This is a slick handguard – the fit and finish are superb. I’ve come to expect that from all RS!Regulate products. Scot’s created another great product in my honest opinion. His AK scope mounts are the best hands down in case you aren’t familiar with them.

Opted For a Vortex Razor AMG UH-1 Optic and 3x Magnifier

I figure this will be a close in weapon – certainly within 200 yards probably – and will figure that out when I get it to the range. With that in mind, putting a high power optic on it just does not make a lot of sense but I also wanted magnification just in case so I checked out what Vortex Optics had to offer.

I’ve now used a boat load of their red dots and scopes on all kinds of firearms including 12 gauges, .50 Beowulf and .338 Lapua. They’re solidly built, good glass and back by a no-nonsense warranty. So they are my go-to for optics and have been for several years. Yes, I do actually have to buy them and no, they do not pay me to say that.

At any rate, I’d been eyeing the Razor AMG UH-1 for a while. Now that is a mouthful and I notice a lot of guys just refer to it has the “Huey” due to the UH-1 helicopter. It’s a true holographic sight which means a laser image (a hologram) is projected into the viewing window. The benefit of this is that regardless of the angle you look through the lens at, if the dot is on the target, it’s going to hit there.

The Razor AMG UH-1 or “Huey” mounts easily with its quick release lever and is ruggedly built.
It has a large viewing window that makes sight acquisition very fast.
The controls are well laid out and easy to use.

Battery life is somewhere around 1,500 hours and there are a lot of variables that can influence that including the brightness of the reticle (there are 14 levels), whether you are using a CR123A battery or a rechargeable LFP123A. Note, Vortex found that recoil kills the basic rechargable RCR123 batteries in 2-300 rounds. They stopped testing the LFP123A at 10,000 rounds and it was still working. I’m using the supplied CR123A still at this point and will likely use Surefire CR123A batteries going forward as I keep them in stock for lights.

In short, the Huey is very slick and it’s getting great reviews. I’ve been a long-time red dot fan and the UH-1 is my favorite at this point.

To get a better view at 100-200 yards, what I did was to pair the Huey sight with the Vortex V3XM Micro 3x magnifier. What this does is give me the ability to install, remove or even swing the installed optic out of the way when I need or don’t need the target to be magnified 3x.

Some assembly was required and I applied medium-strength Blue Loctite to the screws.
Here’s the Vortex Micro 3x magnifier paired with the Huey.

The V3XM is small, light, has a quick release lever also, just like the Huey, and pairs very nicely with it.

Here’s the end result with the SBA4 brace, RS!Regulate rail and Vortex Optics combo.

Summary

The pistol really turned out slick. It balances well and ought to be a blast. Now just to find some time to get to the range before it really gets cold 🙂 Here are some photos for you:


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