The Magpul BDA is an AR arm brace designed to improve the single-handed employment of large-format pistols. Through Magpul engineering and design, the BDA offers an optimized stabilizing accessory with reliable Magpul quality.

By simply swapping out the interchangeable clamps, the BDA is compatible with both Mil-Spec carbine and A5 receiver extensions as well as Pistol receiver extensions. An integrated rear QD cup provides ambidextrous sling mounting options, and the brace’s large lateral surface area supplies plenty of forearm contact. Combined, these features allow application of sling tension, drastically increasing single-handed control of the firearm. With a straight-forward design and Magpul innovation, the BDA Arm Brace is a simple solution to improving your AR pistol.

All ATF, NFA, state and local rules and laws apply, where applicable.

Made in the USA.

• DESIGNED AND INTENDED FOR USE AS A STABILIZING ACCESSORY FOR ONE-HANDED FIRING

  • Non-adjustable/fixed position only for use on AR pistols
  • Interchangeable clamps for compatibility with both Mil-Spec carbine, A5, and Pistol receiver extensions

• HIGH-STRENGTH POLYMER CONSTRUCTION WITH CORROSION-RESISTANT METAL FASTENERS

  • Ambidextrous rear QD cup allows sling tension to be applied while firing with one hand to improve stability

Tech Specs
Platform: AR15, M4
Compatibility: Fits Mil-spec carbine or A5 receiver extension equipped AR pistols and cylindrical Pistol receiver extensions with an outside diameter of 1.175” – 1.25″

Resources:

MAG1251 BDA Arm Brace – Mil-Spec/Pistol Installation Instructions
MAG1251 BDA Arm Brace Fitment Card
BDA Arm Brace FAQ