FailZero EXO Coated 7.62x39mm Bolt Carrier Group

This 7.62x39mm 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.

NOTE: In spite of the included Enhanced Firing Pin, light strikes may still occur when shooting TulAmmo or Golden Tiger ammunition due to excessive primer depth.

Features:

• 7.62x39mm compatible
• MIL-SPEC length bolt 
• M16 cut bolt carrier
• Black Rifle Arms Enhanced Firing Pin 
• Magnetic particle inspected
• Live fire tested
• EXO Nickel Boron treated parts include:
• Bolt, extractor, bolt carrier, cam pin, and carrier key

Includes a reliable MIL-SPEC length bolt and a longer length Black Rifle Arms Enhanced Firing Pin for better performance without over penetration. The extractor includes a heavy spring, silicone insert, and O-ring for improved extraction tension. 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.