2A Armament Builder Series, AR15 Buffer Tube Assembly, 5-Position Billet Buffer, Anodized Black Finish 2A-BSBT-A

The Builder Series AR15 Buffer Tube Assembly is manufactured in-house and finished with hard anodizing for lasting performance. It is billet machined from 6061-T651 aluminum for tighter concentricity than a forging or impact extrusion to reduce potential for bolt carrier binding. The assembly includes a 2A End Plate as well as a 2A Castle Nut.