WMD Guns NiB-X with Ceramic TOPCOAT AR-15 Bolt Carrier Group

WMD Guns NiB-X with Ceramic TOPCOAT AR-15 Bolt Carrier Group

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  • NiB-X Nickel Boron finish inside and out
  • NiB-X coated - 40% more wear-resistant than chrome, and can be used in the field without lubrication and are easily wiped clean
  • Ceramic TOPCOAT adds additional protection to the carrier
  • Add a personal touch to your weapon
  • Heat-treated, shot-peened, and magnetic particle inspected to ensure high-level performance
  • Gas key secured by grade 8 hardened fasteners and properly staked
  • Available in Red


  • Caliber: 5.56 NATO / .223 Rem. / 300BLK
  • Weight: 11.64 oz.
  • Finish:
    • Bolt: NiB-X Nickel Boron
    • Carrier: NiB-X Nickel Boron with Ceramic TOPCOAT
  • Material:
    • Carrier: 8620 Steel
    • Bolt: 158 Carpenter Steel
    • Gas Key: 4130 Steel
    • Extractor: 4340 Steel
    • Cam Pin: 4340 Steel
    • Firing Pin: 8640 Steel
  • Profile: Full-Auto

**A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.


  • AR-15


  • 1x NiB-X Nickel Boron Bolt Assembly
  • 1x NiB-X Nickel Boron Cam Pin
  • 1x NiB-X Nickel Boron w/ Ceramic TOPCOAT Bolt Carrier
  • 1x NiB-X Nickel Boron Carrier Gas Key
  • 1x Firing Pin
  • 1x Firing Pin Retaining Pin



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