Spikes Tactical ST5BG01 Bolt Carrier Group 223 Rem 5.56 NATO Steel AR15

The Spikes Tactical ST5BG01 Bolt Carrier Group is a rugged, high-performance AR-15/M16 BCG engineered for reliability in 223 Rem and 5.56x45mm NATO platforms, finished in a durable Black Phosphate on steel for enduring corrosion resistance and smooth cycling. This HPT/MPI bolt assembly delivers enhanced headspace integrity and consistent lockup under demanding conditions, making it an ideal choice for rifles that demand precision, durability, and repeatable performance. Designed to work seamless