Fail Zero .450 Bushmaster AR-15 Bolt Carrier Group

Upgrade your AR-15 with the Fail Zero .450 Bushmaster Bolt Carrier Group. This BCG is engineered for precision and reliability, featuring a bolt, extractor, cam pin, carrier key, and firing pin, compatible with .458 SOCOM and .450 Bushmaster calibers. Constructed with durable steel and enhanced with EXO Nickel Boron treatment, it offers superior corrosion resistance and reduced friction. Designed for drop-in installation in most mil-spec .450 Bushmaster uppers, it promises seamless integration and optimal performance for firearms enthusiasts.