Fail Zero 6mm ARC Assembled Bolt Carrier Group
Fully assembled Fail Zero bolt carrier group for 6mm ARC with EXO Nickel Boron coating on all critical parts. Drop-in ready for Mil-Spec upper receivers with superior wear and corrosion resistance.
Fail Zero 6mm ARC Bolt Carrier Group
This is a complete, factory-assembled bolt carrier group designed specifically for the 6mm ARC cartridge. It arrives ready to install into any standard Mil-Spec upper receiver chambered in 6mm ARC—no gunsmithing required.
Superior Surface Treatment
Every critical component receives Fail Zero's proprietary EXO Nickel Boron coating:
- 6mm ARC Bolt & Extractor — Precisely engineered for reliable feeding and extraction
- M16 Cut Bolt Carrier — Compatible with standard Mil-Spec components
- Cam Pin — Ensures smooth cycling and longevity
- Carrier Key — Transfers gas impulse with consistency
- Firing Pin — Delivers reliable ignition shot after shot
Why Nickel Boron Matters
The EXO Nickel Boron coating provides permanent dry lubricity, meaning your rifle runs cleaner and requires less maintenance. You'll notice easier cleanup after shooting sessions. The coating also dramatically increases wear resistance and corrosion protection, extending the service life of your rifle's most critical moving parts.
Ready to Go
This is a complete, assembled unit. Simply install it into your upper receiver and you're ready to shoot. Whether you're building a new rifle or upgrading an existing one, this bolt carrier group delivers the reliability and durability serious shooters demand.
