.223/5.56 Bolt Carrier Group - Nickel Boron:
This Bolt Carrier Group has been machined to Mil-Spec standards and tested to ensure the assembly is free of any imperfections.
Your #1 choice for reliability, durability, and superiority!
- 9310 Steel Bolt
- Staked Gas Key
- Nickel Boron Finish
- Machined to Mil-Spec Standards
- Made in the USA and Drop-In Ready