Magpul Mag1251Blk Bda Arm Brace Ar15/M4 Compatible W/ Mil-Spec Pistol Ambi

The Magpul BDA arm brace for AR15 and M4 platforms gives you a serious upgrade for shooting large-format pistols one-handed. If you run an AR pistol and want better control without shouldering it, the BDA delivers a straightforward, purpose-built solution. It's engineered to let you apply sling tension effectively, which dramatically improves single-handed stability and command of the gun. Magpul's design philosophy shows here: solid engineering, reliable construction, and practical features that actually work when you need them.

What sets the BDA apart is its versatility and ambidextrous thinking. The interchangeable clamps mean it works with mil-spec carbine extensions, A5 extensions, or pistol receiver extensions (1.175" to 1.25" OD), so you're not locked into one setup. The large lateral surface area gives your forearm plenty of contact and support, and the integrated rear QD cup handles sling attachment from either side. That combination of forearm real estate and sling-mounting flexibility lets you dial in the exact support method that works for your shooting style.

Built in the USA and designed to function as an arm brace for one-handed pistol fire, the BDA keeps things simple without sacrificing capability. If you're building or upgrading an AR pistol and want the control benefits of a quality brace, this one earns consideration.

Key Features

• Interchangeable clamps fit mil-spec carbine, A5, and pistol receiver extensions
• Ambidextrous QD cup for flexible sling mounting
• Large lateral surface area for substantial forearm support
• Designed to enable sling tension application for improved single-handed control
• Made in the USA

Specifications

Frequently Asked Questions

What AR pistol extensions does the BDA arm brace fit?

The BDA works with mil-spec carbine extensions, A5 extensions, and pistol receiver extensions with an outside diameter between 1.175" and 1.25". Magpul supplies interchangeable clamps so you can match your specific extension type.

Is the Magpul BDA ambidextrous?

Yes. The integrated rear QD cup is ambidextrous, giving you sling mounting options on either side of the brace.

Can I shoulder this brace?

The BDA is designed and intended to function as an arm brace for one-handed firing of a pistol, not to be fired from the shoulder. Any reconfiguration may affect the legal status of your firearm. You are responsible for ensuring your rifle configuration complies with all applicable federal, state, and local laws.

What does this brace include?

The BDA comes with the brace assembly and interchangeable clamps. The integrated QD cup is built in for sling attachment.