Magpul Industries BDA Arm Brace Black AR-15/M4 Mil-Spec Pistol

The Magpul BDA Arm Brace is a compact pistol stabilizer purpose-built to improve single-handed control of large-format AR-15/M4 pistols. Finished in black and configured for ambidextrous use, the BDA is engineered to fit Mil-Spec carbine, A5, and cylindrical pistol receiver extensions, making it a versatile option for the most common AR-pistol buffer tube setups.

Designed specifically around the demands of large-frame AR pistols, the BDA adds a usable rear surface for the shooter's support hand without enlarging the pistol. The slim cheek area keeps the overall profile tight, while an integrated rear QD sling cup accepts a standard push-button QD swivel so the pistol stays ready for hands-free carry. The brace's fully ambidextrous design keeps controls and cheek weld identical for right- and left-handed shooters.

The BDA clamps onto any AR-15 or M4 pistol that uses a standard Mil-Spec receiver extension, an A5 receiver extension, or a cylindrical pistol receiver extension, and installs much like a standard carbine stock. This model is not compatible with proprietary or commercial receiver extensions outside of those three standards. It is sold as an arm brace intended for one-handed stabilization of an AR pistol.