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7.62x39 Nitride Bolt Carrier Group Flat Side Cut

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Product Description

  • 7.62x39 Bolt Carrier Group
  • The QPQ nitride/melonite treatment hardends the surface to 70 RC and reduces friction as well as adding corrosion resistance inside and out
  • Superior to chrome lined and parkerized bolt carrier groups
  • 9310 bolt nitride/melonite treated
  • Requires very little lubrication and has a very slick surface
  • Corrosion resistance inside and out
  • Side staked gas key with grade 8 fasteners
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