WMD Guns NIB-X Bolt Carrier Group without Hammer – 5.56 NATO/.223 Rem

The WMD Guns NIB-X Bolt Carrier Group delivers enhanced reliability and easy cleaning for AR-15 platform rifles. This BCG uses WMD's proprietary Nickel Boron coating for extreme lubricity and corrosion resistance, reducing friction during cycling and simplifying carbon removal after extended range sessions. The "without hammer" configuration means this is a replacement BCG only—your existing fire control group remains in place.

NIB-X coating is applied at the molecular level for a uniform, self-lubricating surface that operates cleaner than traditional phosphate or nitride finishes. The carrier is machined to mil-spec dimensions for drop-in installation in any mil-spec upper receiver. Gas key is properly staked and pressure tested. No gunsmithing required—install using standard AR-15 disassembly procedure.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15, 5.56 NATO/.223 Rem chambered rifles
• Material: 8620 steel carrier, 9310 steel bolt
• Finish: WMD NIB-X Nickel Boron coating, black
• Installation: Drop-In
• Includes: Bolt carrier, bolt assembly, cam pin, firing pin, firing pin retaining pin (hammer and trigger not included)