WMD Guns

AR-15/M16/M4 Full Auto Bolt Carrier Group – NiB-X Nickel Boron POLISHED NiBXBCG0001

WMD brings the advanced performance of NiB-X® nickel boron and other performance coatings to one of the most critical components on your AR. Our premium BCG is coated in our proprietary NiB-X® nickel boron coating and polished to a presentation-grade sheen, this top-quality BCG resists fouling, needs practically no lubrication, and can be cleaned with a quick wipe of a cloth. We offer a variety of calibers and other performance finishes on BCGs.

We’ve run thousands of rounds between cleanings without malfunctions. Military personnel have praised its performance in desert conditions (where heavy lube buildup could attract deadly dust and grime). You’ll find that it provides extraordinary reliability…while dramatically reducing the cleaning time.

NiB-X M16/AR-15 Full Auto Bolt Carrier Group – POLISHED All WMD BCG components are manufactured by Defense Industrial Base suppliers to WMD’s exacting specifications to provide the best BCG available. Specifically engineered for NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and maintenance. The BCG components are coated and polished to reduce fouling adherence. Coating is guaranteed for life against chipping, spalling or flaking. Over 30K rounds in Government protocol endurance testing did not wear the coating off. Especially beneficial in short barrel setups and suppressed platforms.

Specifications:

Bolt – Case hardened 9310, shot peened, magnetic particle inspected, with high-performance extractor, ejector springs, gas rings and special O-ring buffer.

Extractor – Manufactured, heat-treated, and hardened per government drawings.  NiB-X coated.

Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per Government drawings.

Carrier – Faceted M4/16 style full auto (heavier) functions in AR15 and M4/16 platforms, 8620 material, heat treated and case hardened. Manufacturing tolerances and surface finishes tightly controlled. NiB-X coated for durability and ease of cleaning.

Gas Key – Hardened to USGI specifications and attached using grade 8 hardened fasteners.  Permatex No. 3D Aviation Form a gasket Type III Sealing Compound per MIL-S-45180 used on assembly. NiB-X coated. Staked per military specifications.

Cam Pin – Manufactured, heat treated, hardened and certified per government drawings. NiB-X Coated