FailZero AR-15 Bolt Carrier Group 7.62x39mm Nickel Boron No Hammer

The FailZero AR-15 Bolt Carrier Group is a semi-automatic replacement carrier assembly for AR-15 rifles. It arrives fully assembled and is designed to drop into Mil-Spec upper receivers chambered for 7.62x39mm.

The bolt, extractor, M16 cut bolt carrier, cam pin, carrier key, and firing pin are finished in EXO Nickel Boron, a coating the manufacturer describes as dry lubricating and resistant to wear and corrosion, which also makes cleaning easier. The extractor hardware includes a heavy spring, silicone insert, and o-ring intended to increase extraction tension.

The finish is silver. Confirm chambering and receiver compatibility before installation.

• Action: Semi-Auto
• Platform: AR-15
• Caliber: 7.62x39mm
• Finish: Nickel Boron
• Color: Silver
• Fits: Mil-Spec AR-15 upper receivers chambered for 7.62x39mm
• Included: Fully assembled bolt carrier group with extractor spring, silicone insert, and o-ring