The Magpul BDA Arm Brace offers a versatile solution for enhancing control of AR15/M4 pistols. Compatible with MilSpec carbine A5 and pistol receiver extensions it features an integrated rear QD cup for ambidextrous sling mounting. Its broad lateral surface provides ample forearm contact allowing for increased stability and improved single-handed control. This straightforward design exemplifies Magpul's commitment to innovation delivering a practical enhancement for your AR pistol.