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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

Action: Semi-Auto



Nickel Boron Treated Parts:

Bolt and Extractor

Bolt Carrier

Extractor

Cam Pin

Carrier Key

Firing Pin



Note: No Hammer Included



Fits: AR-15s chambered in .223 Remington/5.56mm NATO/.300 Blackout