FailZero M16/M4 Bolt Carrier Group with EXO Coating
Fully assembled bolt carrier group with EXO nickel-boron coating for superior lubricity and corrosion resistance. Drop-in ready for mil-spec M16, M4, and AR15 platforms.
Fits: AR15
FailZero M16/M4 Bolt Carrier Group
This is a complete, fully assembled bolt carrier group engineered for immediate deployment in your rifle. No gunsmithing required—simply drop it into any mil-spec M16, M4, or AR15 upper receiver and you're ready to shoot.
Superior Surface Technology
Every critical component is treated with FailZero's proprietary EXO nickel-boron coating. This advanced surface treatment delivers:
- Permanent dry lubricity — operates cleanly without traditional oil or grease
- Extreme durability — resists wear from thousands of firing cycles
- Enhanced corrosion resistance — protects against rust and environmental degradation
What You Get
The group arrives completely assembled with hammer and all internal components ready to function. The nickel finish provides both aesthetic appeal and practical protection against the elements.
The Practical Advantage
The EXO coating means less maintenance and more reliability. You'll spend less time cleaning and more time shooting, while enjoying the confidence that comes from a carrier group built to exacting standards.
Features
- nickel boron treated
- extreme durability
- dry lubricity
- corrosion resistant
