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Questions & Answers
Customer Reviews
Helpful Positive Review Simple solution by Al, May 24, 2021
I have a SBA3 on a pistol build. I got this one for a second pistol. This is very light and simple, very solid and cheap solution to put on a AR pistol. The qd mount on the rear is not even noticed if you mount on shoulder, by accident ;)
2/2 found this helpful
Most Recent Reviews Magpul for the win by Jaeson, Verified Owner, July 1, 2025
Had the kak blade which was good but the bsl is just better. Magpul for the win.
Read All 2 Reviews
Color: Black Gun Type: Semi-Automatic Pistol Condition: New

Code: 55-STB-SIX2A-MAG1143-BLK

MPN: MAG1143-BLK

UPC: 840815128861

List: $59.95Save 13%
$52.19
Purchase Restrictions Purchase Restrictions

Product Info for Magpul BSL Arm Stabilizing Brace

The Magpul BSL is an AR arm brace designed to improve the single-handed employment of large-format pistols. The BSL utilizes Magpul design and engineering to offer a stabilizing accessory with a robust feature set and trusted Magpul quality.image

With classic Magpul aesthetics, the BSL is compatible with Mil-Spec carbine receiver extensions and employs a simplified, durable, and easy to use adjustment mechanism. An integrated QD cup and two M-LOK compatible slots provide ambidextrous sling mounting options and enable stabilizing sling tension to be applied, drastically increasing single-handed control of the firearm. With a straight-forward design and Magpul innovation, the BSL is a simple solution to improving your AR pistol.

Improves single-Armed use of large-format pistols

  • Designed and intended for use as a stabilizing accessory for one-handed firing
  • M-LOK compatible slots for additional sling mounting options
  • Ambidextrous rear QD cup allows sling tension to be applied while firing with one hand to improve stability
  • Toolless, single-handed adjustment

Technical Specifications

  • Compatible with Mil-Spec carbine receiver extensions.
  • Mil-Spec carbine receiver extension equipped AR Pistols. Not compatible with proprietary, pistol, or commercial receiver extensions. All NFA, state and local rules and laws apply, where applicable.
  • This product is designed and intended to serve only as a forearm brace for one-handed firing of a pistol. It is not intended to be fired from the shoulder. Any redesign or reconfiguration of this product may render the attached firearm NFA controlled. The user is exclusively responsible for determining the correct application of state and federal law based on the unique configuration of each firearm.

Specifications for Magpul BSL Arm Stabilizing Brace:

Manufacturer: Magpul Industries
Color: Black
Gun Type: Semi-Automatic Pistol
Condition: New
Fabric/Material: Polymer

Features of Magpul BSL AR Arm Stabilizing Brace

  • Simple, Strong High-strength polymer and metal construction

Package Content for Magpul BSL AR Arm Stabilizing Brace

  • Magpul BSL AR Arm Stabilizing Brace

Magpul BSL Arm Stabilizing Brace Orderable Models

List of Orderable Models

Magpul BSL Arm Stabilizing Brace, AR-Pistol Platform, Semi-Automatic Pistol, Polymer, Black, MAG1143-BLK , MPN: MAG1143-BLK , UPC: 840815128861 , Code: 55-STB-SIX2A-MAG1143-BLK
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