Bravo Company MK2 Receiver Extension | Fits AR | Buffer Tube | Matte Finish | Black

BCM MK2 Receiver Extension for your AR15, M16, M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. *NOTE* These buffer tubes require a rifle action spring and specific BCM MK2 buffer, carbine and rifle buffers will NOT work. KEY FEATURES: Fits AR | 8 Position | Can Reduce Felt Recoil | Requires Proprietary Buffer Weight