This nickel boron 308 complete bolt carrier group features a Nickel Boron EXO coating for enhanced durability, lubricity, and easy cleaning. EXO coating is performed by Failzero. Carrier is made from 8620 steel, bolt is made from 9310 steel and is MPI tested and shot peened. The Bolt and Bolt Carrier Assembly comes complete with cam pin, firing pin, and firing pin retainer. This bolt carrier group is compatible with DPMS style AR-10 308/7.62x51 rifles, including M5E1. All Tom's Tactical brand products include a lifetime warranty.

Features

• Nickel Boron EXO coating for enhanced durability, lubricity, and easy cleaning
• Works with 308 and 7.62x51 DPMS Style AR-10 Rifles
  
• Bolt is made from 9310 steel and is MPI, shot peened
  
• Firing pin is hard chrome
• Gas key is machined from 4140 steel and is properly staked
• Hardened steel extractor with double extractor spring and double o-ring
• Mil-spec gas rings
• Made in USA
• Lifetime Warranty