JMac - MDi-co

AB-8R Arm Bar

(11 Reviews)
Current Stock:
2.80 Ounces
Add a Mount
Add a 1913 Adapter (if required)
Brace Adapter or Buttplate
Add a Brace
Add a Cheek Riser

(A)rm(B)ar(8)inch(R)aised - NO MOUNT INCLUDED

This Arm Bar can be configured as a brace or stock!

  • The optional AB-BA brace adapter that allows you to install the GearHead Works Tail Hook Brace
  • The optional Folding Buttplate makes it a stock and allows you to fold snag free from a bag or shoot folded with a Drum!

Lightweight and Rigid!

  • Modular Design - Brace/Stock with many mounting options
  • Integrated QD Sling Socket
  • 8" Length (when assembled w/additional components)
  • Raised Design allows your arm to fit under the brace better
  • Compatible with SIG folding mechanisms
  • 7075 T6 Aluminum
  • Hard-Coat Anodized

Installing a stock on your pistol makes it an SBR. You are responsible for knowing and following your local/state/federal laws!

JMac Customs LLC is not responsible for the end users misuse  of our products.

Reviews (11)


Written by Albert on Oct 17th 2022

Excellent little stock that’s very foldable not only to the side but also the butplate if you get it. Works great and very good making your full-size AK more compact while looking good.


Written by Butter fingers on Dec 7th 2021

Hands down, the nicest piece for your AK pistol needs. Very easy to install the tail hook and slap on to the folding mechanism.


Written by Mitch S on Oct 25th 2021

Nice quality product! This slight rise makes for a more comfortable cheek weld....

Light weight and sturdy

Written by Billy B on Oct 14th 2021

I fitted this to my MCX folding brace with the AB-BA adapter and tailhhook. The feel and look of this arm bar is better than the alternatives, and the option for a cheek riser from Isle MFG is a bonus. The machining is great and it feels solid with no flex like the Sig plastic arm. The additional two QD points from the brace and arm are placed exactly where I need them, depending on how I want to carry with a sling. The rise is just enough that it clears the charging handle while giving that extra height that I was looking for. Great product and I will be ordering more for other builds.

Well made

Written by D. on Jul 28th 2021

Lots of attention to detail on these. Good machine work, super solid despite being skeletonized. Good QD's, with anti-rotation. Tapped for a rest, if you want it. These were designed by someone who actually put some thought into it.

AB-8r with Tailhook Brace adapter and 1913 folding attachment

Written by Mark on Feb 4th 2021

Mounted this to my Draco. Rock solid setup from the Tailhook Brace adapter and 1913 folder to the Stormwerks AK pistol adapter. Quality of work is on point! I highly recommend this. Thanks

Ideal on a MCX Pistol

Written by Rainman.pnw on Oct 14th 2020

The only thing that comes close to this is the venerable (and discontinued) "Kate Moss" skeleton stock from Sig, but that is a stock, and then I'd have to go get a tax stamp. This setup, with the rise in the middle, the rock-solid Sig side-folding bracket, and a Tailhook Mod 1 make for an incredible light-weight, low-bulk brace on my MCX Virtus pistol offers the perfect cheek weld for running a Romeo 4T that is co-witnessed with the iron sights.

AB-8R Arm Bar

Written by Axis on Sep 29th 2020

I have two of this version of the arm bar. I have had the fs1913, tf1913, and used the A3 Tactical brace adapter. The JMac version is by far the most solid. The design, durability, and aesthetics are second to none. The arm bar brought my build together. Jmac listens to customers and produces quality items that other companies just won't do. They truly care about their customer base and I'm thankful to have their products on my firearms.

Great product

Written by CRIS Villanueva on Sep 21st 2020

Shipping was fast and product exceeded my expectation. All my adjustable braces and stocks fit nicely with very minimal back and forth play. ZERO twist, amazing fitment.

Made my gun perfect

Written by Robert on Sep 19th 2020

After installing this I was instantly a better shooter, it added 100 points to my credit score, and even got me a girlfriend. Honestly though iys a great product it really helps with my brace and makes my gun so much more handy and makes the recoil more manageable and helps me stay on target alot better. I'm hooked I need another one for my draco now

Perfect on the mPx

Written by ECossis on Jul 25th 2020

The Arm Bar fits and feel perfect on the MPX. No more bulkiness from the stock collapsible brace. Great product and looking forward to getting a few more. Cam assembled already as well.

Related products

Customers also Viewed