.308 Bolt Carrier Group with Black Nitride Coating

• MPI Bolt (Magnetic Particle Inspected)

• Carpenter 158 steel bolt (Black Nitride)

• Shot peened firing pin

• Grade 8 hardened fasteners

• 8620 heat treated carrier, polished w/black nitride coating

• Key staked per Mil-Spec

 No returns taken on bolt carrier groups. If defective, we will arrange shipment and return to manufacturer representative for inspection/repair or replacement. Void if fired with reloads or if rifle is not assembled by a manufacturer or gunsmith.