CMMG 55CA67D Black Pistol Tube Assembly AR-Platform Accessory

The CMMG 55CA67D is a Pistol Tube Assembly designed to convert adjustable position buffer tubes on AR pistols to a smooth sided pistol tube. The kit reuses your existing buffer, spring, and castle nut, minimizing the need for additional components. Included are a Pistol Buffer Tube and Ambi Sling Receiver End Plated.