WMD AR-15 NIB-X Nickel Boron BCG Without Hammer Matte Features
The WMD Guns NiB-X bolt carrier group is a full-auto/M16 profile AR-15 carrier with a Carpenter 158 bolt and 8620 steel carrier, finished in WMD’s proprietary NiB-X nickel boron coating for reduced friction and easier cleaning than phosphate or parkerized finishes. It ships without a hammer, for builds where the hammer is sourced separately or a drop-in trigger assembly is used. Also available in our polished NiB-X finish; browse our full selection of AR-15 bolt carrier groups. Made in the USA.
Specifications
- Manufacturer: WMD Guns
- Model: NiB-X BCG, No Hammer
- Platform: AR-15 / M4 / M16, Full-Auto Carrier Profile
- Finish: NiB-X Nickel Boron, Matte
- Bolt: Carpenter 158 Steel, Magnetic Particle Inspected, Mil-Spec Gas Rings
- Extractor: Heat-Treated & Hardened per Mil-Spec, NiB-X Coated
- Firing Pin: Mil-Spec, Heat-Treated, Hardened, Chromed
- Carrier: 8620 Steel, Heat-Treated & Case Hardened, NiB-X Coated
- Gas Key: Mil-Spec Hardened, Grade 8 Fasteners, Properly Staked, NiB-X Coated
- Cam Pin: Heat-Treated & Hardened per Mil-Spec, NiB-X Coated
- Hammer: Not Included
- Country of Origin: Made in USA
- SKU: NIBXBCG0005
All components meet or exceed mil-spec dimensions for compatibility with standard AR-15 upper receivers, barrels, and gas systems. This BCG is also available in a polished NiB-X finish, which provides the same durability and cleaning benefits with a brighter, more reflective appearance than this matte finish.
What’s Included
- 1x WMD AR-15 NiB-X Bolt Carrier Group, Without Hammer, Matte
