Fail Zero BCG 6mm ARC – EXO Nickel Boron

Description

This Fail Zero assembled bolt carrier group is built for AR-pattern upper receivers chambered in 6mm ARC. All critical components receive EXO Nickel Boron treatment for durable, low-friction operation and simplified cleaning. The BCG is supplied fully assembled for straightforward installation in most Mil‑Spec upper receivers chambered in 6mm ARC. Components treated with EXO Nickel Boron include the bolt, extractor, carrier, cam pin and firing pin to improve wear and corrosion resistance.

Key Specifications

• The caliber is 6mm ARC.
• The product is supplied as a fully assembled bolt carrier group.
• Critical components are finished with EXO Nickel Boron treatment.
• The primary construction material is steel.
• Compatibility is listed as drop-in for most Mil‑Spec upper receivers chambered in 6mm ARC.
• The bolt carrier is specified as an M16 cut bolt carrier.
• Included treated components are bolt, extractor, carrier, cam pin, carrier key, and firing pin.
• The overall dimensions are listed as 1.70 x 3.90 x 11.00 inches.
• The overall length is listed as 11 inches.
• The listed shipping weight is 0.808 lb.

Engineered for reliable, low-maintenance operation in 6mm ARC AR-platform rifles, this assembled BCG pairs durable steel construction with EXO Nickel Boron surface treatment on critical parts. Its drop-in configuration and treated components simplify maintenance while supporting consistent function under regular use—an efficient choice for shooters building or maintaining precision-oriented 6mm ARC rifles.