Enhance the performance of your AR-15 or M16 with the BHA Precision Complete Nickel Boron Faceted Bolt Carrier Group (BCG). Engineered for exceptional reliability and durability, this BCG is designed to withstand rigorous use and deliver superior performance. The faceted edge cuts reduce friction and enhance reliability, ensuring smooth operation even under demanding conditions. Key Features: Faceted Edge Cuts: Reduces friction and enhances reliability for smoother cycling. AR-15 and M16 Compatible: Suitable for rifles chambered in 5.56 NATO, .223 Remington, 300 Blackout