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Questions & Answers
is this considered a stock or a brace? Expert Answer

The JMac Customs AB-8R Arm Bar w/ Folding Buttplate is a stock. You can purchase the Arm Bar and 5.5mm adapter together and use a brace instead of a stock. The Arm Bar and 5.5mm adapter can be found linked below:

https://www.opticsplanet.com/jmac-customs-ab-8r-arm-bar-with-brace-adapter-for-5-5mm-folding-aks.html

by Ethan, Gear Expert, August 11, 2025
Will this go onto a Zpap M92 with or without the picatinny rail in the back? Expert Answer

No, this JMac Customs AB-8R Arm Bar with Folding Buttplate will only fit Arsenal, Izmash, and KUSA rifles with the Russian 5.5mm pin folding stocks.

by Ethan, Gear Expert, October 21, 2022
Gun Make: Kalashnikov Gun Model: AKM Stock/Brace Material: 7075 T6 Aluminum Color: Black Weight: 2.8 ozLength: 8 in

Code: 4VI-3AK-JMC0230-AB-8R-AB-FB-SM-5-5

MPN: AB-8R+AB-FB+SM-5.5

List: $252.85Save 10%
$227.57

Product Info for JMac Customs AB-8R Arm Bar w/ Folding Buttplate for 5.5mm Folding AKs

(A)rm(B)ar(9)inch(R)ise + AB-BA Brace Adapter + SM-4.5 (not assembled).image

Lightweight and Rigid!

Modular Design - Brace/Stock with many mounting options

Integrated QD Sling Socket

9'' Length

7075 T6 Aluminum

Hard-Coat Anodized

Optional Folding Buttplate

The AB-BA adapter allows you to install braces like the TailHook from Gear Head Works

Anti-Rotational design

7075 T6 Aluminum

Type 3 Hard-coat Anodize

AB-BA Socket Head Screw

AB-BA Anti-Rotation Pin

SM adapters utilize the factory rear trunnions and eliminate the need for additional adapters or folding mechs.

This version of the SM stock/brace adapter is specifically made for 4.5mm pin folding stocks. 4.5mm trunnions can be found in the SLR 104/106/107 UR/CR/FR. Cheek wield is adjustable by moving the stock/brace up or down on the adapter.

2 height positions

7075 aluminum

Black hardcoat anodize finish

Includes mounting bolt for lower hole

Shown with GearHead Works MOD1C Tail Hook brace, SOLD SEPARATELY

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.

Specifications for JMac Customs AB-8R Arm Bar w/ Folding Buttplate for 5.5mm Folding AKs:

Manufacturer: JMac Customs
Gun Make: Kalashnikov
Gun Model: AKM
Stock/Brace Material: 7075 T6 Aluminum
Color: Black
Finish: Hard Coat Anodized
Weight: 2.8 oz
Length: 8 in

Features of JMac Customs AB-8R Arm Bar w/ Folding Buttplate for 5.5mm Folding AKs

  • 2 QD Sling points Built in Rise Drilled and Tapped for Cheek Risers

Package Contents:

  • JMac Customs AB-8R Arm Bar w/ Folding Buttplate for 5.5mm Folding AKs

JMac Customs AB-8R Arm Bar w/ Folding Buttplate for 5.5mm Folding AKs Orderable Models

List of Orderable Models

  • JMac Customs AB-8R Arm Bar with Folding Buttplate for 5.5mm Folding AKs, 8in, Black, 8 in, AB-8R+AB-FB+SM-5.5 , MPN: AB-8R+AB-FB+SM-5.5 , Code: 4VI-3AK-JMC0230-AB-8R-AB-FB-SM-5-5
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