Complete bolt/carrier group is ready to drop into your AR-style .308 rifle and run hard. Machined of 8620 steel, carrier has a durable phosphate finish and chrome lined interior. Carrier does not have serrations for a forward assist. Bolt is machined from 9310 hardened steel with an extractor of hardened S7 tool steel and a phosphate finish. Gas key has been torqued to spec and properly staked. Firing pin is machined from stainless steel. Group also includes cam pin and firing pin retaining pin. Mfg: Cmmg SPECS: Carrier – 8620 steel, chrome lined, phosphate finish, matte black. Bolt – 9310 steel, phosphate finish. Extractor – S7 tool steel, phosphate finish. Firing Pin – Stainless steel.
