Fail Zero AR-15 Bolt Carrier Group, EXO Nickel Boron Coated - 009-FZAR15-01-NH

This is a fully assembled bolt carrier group (BCG) designed for AR-15 platforms chambered in 5.56/.223 and 300 Blackout. All critical parts are coated with EXO Nickel Boron technology, providing permanent dry lubricity, extreme durability, and increased wear and corrosion resistance. The BCG drops into most mil-spec AR-15 upper receivers without additional components.