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5.56 Black Nitride Bolt Carrier Group

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1.00 LBS
$5.50 (Fixed shipping cost)

 Product Description

 Black Nitride Bolt Carrier Group with MPI Bolt


  • 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.

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 Product Reviews

  1. Jimi does it again.

    Posted by ¹joe Hampton on 12th Jun 2020

    Bought this to upgrade a PSA bcg I had bought for another build. Flawless in its action.

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