Black Nitride Bolt Carrier Group with MPI Bolt
Features:
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MPI Bolt (Magnetic Particle Inspected)
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Carpenter 158 steel bolt (black nitride)
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Shot peened firing pin
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Grade 8 hardened fasteners
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8620 heat treated carrier, polished w/black nitride coating
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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.*
