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The FailZero complete bolt carrier group sets itself apart from other manufacturers with EXO Nickel Boron coating on all critical parts. This technology provides permanent dry lubricity to reduce friction and wear, as well as increase corrosion resistance. Choose the FailZero BCG for an extremely durable, reliable AR-15 rifle.
All Critical Parts Coated with Patented Nickel Boron Coating To Reduce Friction/Improve Performance
Chamber: .223 Remington/5.56mm NATO/.300 Blackout
Nickel Boron Treated Parts:
Bolt and Extractor
Note: No Hammer Included
Fits: AR-15s chambered in .223 Remington/5.56mm NATO/.300 Blackout