Needing some replacement parts for your Bolt Carrier Group? No worries, CMMG has you covered! Each Bolt Carrier Group Repair Kit comes with the following items: Bolt 7.62x39mm Firing Pin Firing Pin Retainer Pin Gas Key Key Screw X 2 Bolt Cam Pin Extractor Extractor Pin Extractor Springs Extractor O-Ring Ejector Ejector Spring Gas Ring 1/16a ^2 Roll Pin Mfg: Cmmg
