Brownells M16 7.62×39 Bolt Carrier Group Nitride Mp

The Brownells M16 7.62×39 Bolt Carrier Group offers AR-15 builders building a unique rifle chambered in the 7.62×39 cartridge with the final necessary component needed to get their gun running right. The Brownells M16 7.62×39 Bolt Carrier Group features a bolt head that is fully machined from solid 9310 steel, which is then completed with a heat treatment and shot peening. The carrier is built using 8620 hardened steel. Features torqued and staked gas keys Extractor assembled with rubber insert and spring Checked thoroughly with magnetic-particle inspection Increased corrosion resistance with black-nitride finish The Brownells M16 7.62×39 Bolt Carrier Mfg: Brownells