FailZero AR-15 Semi-Auto Bolt Carrier Group - Completely Assembled, EXO Nickel Boron Coated Finish

Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The AR-15 Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.

Features:

• AR-15 cut carrier
• Magnetic particle inspected
• Live fire tested

Treated Parts Include:

• Bolt & Extractor (5.56/.223 compatible)
• Bolt Carrier
• Extractor
• Cam Pin
• Carrier Key
• Firing Pin