Magpul - BDA Arm Brace for AR Pistols, Mil-Spec-Compatible

The Magpul BDA Arm Brace is a reliable stabilizing accessory engineered to improve single-handed control of AR pistols. Built with high-strength polymer and corrosion-resistant metal fasteners, the BDA provides Magpul’s trusted quality in a streamlined, non-adjustable brace designed for practical use.

By swapping out the interchangeable clamps, the BDA is compatible with both Mil-Spec carbine, A5 receiver extensions, and Pistol receiver extensions (1.175”–1.25” OD). An integrated ambidextrous rear QD cup allows sling attachment, enabling sling tension for increased stability during one-handed firing. Its wide lateral surface area maximizes forearm contact, improving control while maintaining a compact, straightforward design.

Key Features:

• Stabilizing brace designed for one-handed firing of AR pistols
• Non-adjustable/fixed position for simplicity and compliance
• Interchangeable clamps fit Mil-Spec carbine, A5, and Pistol extensions
• High-strength polymer body with corrosion-resistant hardware
• Ambidextrous QD sling cup for improved single-hand stability
• Large surface area for enhanced forearm support
• Made in the USA with Magpul engineering and innovation

Technical Specifications:

• Platform: AR15, M4
• Compatibility: Mil-Spec carbine, A5 receiver extensions, and cylindrical pistol receiver extensions (1.175”–1.25” OD)

Legal Notice: This product is designed and intended to serve only as a forearm brace for one-handed firing of an AR pistol. It is not intended to be shouldered. All ATF, NFA, state, and local laws apply. Users are solely responsible for ensuring compliance with applicable regulations and firearm configurations.