WMD Guns NiB-X Bolt Carrier Group - Tiffany Turquoise

Manufactured by WMD


In Stock

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WMD Guns has established a reputation of excellence based on extensive firearms and defense industry experience, plating expertise, and gunsmithing capabilities. They are innovators in nickel boron products for the firearms industry and the sole source of the NiB-X nickel boron coating process.

The NiB-X Bolt Carrier Group includes an M16 cut bolt carrier machined from 8620 steel to MIL-SPEC. The carrier has been heat treated, case hardened, NiB-X coated, then ceramic coated. The NiB-X coating provides durability and ease of cleaning while the ceramic coating adds color. The bolt is crafted from carpenter 158 steel, heat-treated, shot peened, and magnetic particle inspected.

  • Ceramic coated NiB-X
  • M16 cut
  • 8620 steel carrier
  • Shot peened carpenter 158 steel bolt
  • Magnetic particle inspected
  • Staked gas key
  • Grade 8 fasteners
  • NiB-X coated cam pin
  • NiB-X coated extractor
  • Black extractor buffer and heavy-duty spring
  • MIL-SPEC gas rings
  • Made in U.S.A.


Bolt MaterialCarpenter 158 Steel
BrandWMD Guns
Caliber Gauge5.56 NATO
Carrier FinishNickel Boron with Ceramic Top Coat
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
Magnetic Particle InspectMagnetic Particle Inspected

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