Description

7.62×39 Nitrided and QpQ complete Bolt Carrier Group with bolt comes complete with standard firing pin. If you do plan on using steel ammo we do recommend the extended firing pin which is .2 mm longer than the standard m16 firing pin to help reduce soft primer strikes. ( this pin is sold separately) specs: -8620 Tool Steel Enhanced Radius design Carrier with inside and out Black Nitride Treatment -CARPENTER 158 MPI Bolt with inside and out Black Nitride Treatment -Billet T grade Machined Extractor with Black Insert Billet Machined 4140 Steel Gas Key -Grade 8 Fasteners -Military Specification Gas Key Staking-