Nickel Boron BCG
FailZero BCG *Pick Your Caliber*
AR-15 / M16 FAIL ZERO Nickel Boron Bolt Carrier Group
This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers.
All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.
Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Nickel Boron Treated Parts Include:
Bolt & Extractor (5.56/.223 compatible)
FailZero 6.5 Grendel BCG Nickel Boron
FailZero .224 Valkyrie BCG Nickel Boron
FailZero .450 Bushmaster BCG Nickel Boron
FailZero LR-308 BCG Nickel Boron
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Out of stock