This 2A Armament FMC was designed as a high-quality, reliable, mil-spec full mass bolt carrier group that supports forward assist functionality.

• Carrier: 8620 steel, heat treated, Black Nitride


• Bolt:  9310 steel, heat treated, MP, Cryo'd, QPQ Nitride


• Extractor: machined, heat treated, QPQ Nitride


• Carrier key: machined, heat treated, QPQ Nitride, staked screws


• Weight: 11.6 oz assembled


• MADE IN THE U.S.A


• SKU: 2A-BSBCG-1