FailZero 5.56 Full Auto Bolt Carrier Group
Fully assembled mil-spec bolt carrier group with EXO Nickel Boron coating for reduced friction, enhanced durability, and superior corrosion resistance. Ready to install in AR-15 uppers.
Fits: AR-15
FailZero 5.56 Full Auto Bolt Carrier Group
This is a complete, fully assembled bolt carrier group engineered for AR-15 platform rifles chambered in 5.56 NATO. It arrives ready to drop into any mil-spec upper receiver without additional fitting or modification.
Superior Coating Technology
All critical components are treated with FailZero's proprietary EXO Nickel Boron coating, a permanent dry lubricant that delivers measurable advantages:
- Reduced Friction: The coating provides inherent lubricity, allowing the bolt carrier to cycle smoothly with minimal resistance
- Enhanced Durability: Nickel Boron treatment significantly increases wear resistance, extending component life
- Corrosion Protection: The coating resists rust and oxidation, maintaining reliability in harsh environments
Complete Component Package
This bolt carrier group includes all essential parts:
- Bolt and extractor (5.56/.223 compatible)
- Bolt carrier
- Extractor
- Cam pin
- Carrier key
- Firing pin
Each component receives the same EXO Nickel Boron treatment for consistent performance throughout the assembly. The result is a bolt carrier group that cycles reliably, requires less frequent cleaning, and delivers improved overall rifle performance.
Features
- nickel boron treated
- extreme durability
- dry lubricity
- corrosion resistant
