Anderson Manufacturing Complete Bolt Carrier Group 5.56/300 Blackout - AM B2K630AA000P

Complete bolt carrier group assembly for 5.56 NATO, .223 Remington, and .300 Blackout platforms with M16 profile. Features nitride-finished 8620 steel carrier and magnesium phosphate-finished 9310 steel bolt, includes cam pin, firing pin, and firing pin retainer. RF-85 treated for enhanced durability and corrosion resistance.