CMMG Receiver Extension Kit, Pistol Buffer Tube Assembly, Black Anodized - 55CA65A

This CMMG Receiver Extension Kit includes a black buffer tube, carbine buffer assembly, action spring, and ambidextrous sling mount end plate for AR-15 pistol builds. Designed for use with 300 AAC Blackout and 5.56mm pistol lower receivers. Made from aluminum with anodized finish and manufactured in the USA.