The WMD Guns NIB-X Bolt Carrier Group is a precision-manufactured replacement BCG engineered for AR-15 platforms chambered in 7.62×39.
- Part Type: Bolt Carrier Group
- Compatible Firearms: AR-15 chambered in 7.62×39
- Material: 8620 steel carrier, Carpenter 158 steel bolt
- Finish: NIB-X Nickel Boron coating
- Installation: Drop-In
- Includes: Complete bolt carrier group (carrier, bolt, cam pin, firing pin, retaining pin)











