CMMG AR-15 13.05 Inch Receiver Extension Kit Carbine Accessory

The CMMG AR-15 Carbine Receiver Extension Kit gives you everything needed to finish an AR-15 build or complete a lower receiver you’ve had on hand. This kit includes a 13.05 inch receiver extension, end plate, carbine buffer, and spring, all spec’d to Mil-Spec 6-position standards.