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WMD NiBx 5.56MM M16 Bolt Carrier Group

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Product Description

Bolt – Carpenter 158 case hardened, shot peened and magnetic particle inspected. Manufactured to Government drawings. Mil Spec gas rings. NiB-X coated (40% more wear resistant than Chrome). Extractor – Manufactured, heat treated, hardened, per Government drawings. Black extractor buffer and heavy duty spring. NiB-X coated. Firing Pin – Manufactured, heat treated, hardened, Chromed and certified per Government drawings. Carrier – M16 style carrier (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters 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. NiB-X Coated. 

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  1. Great bolt carrier super easy to clean 5 Star Review

    Posted by on 9th Feb 2015

    I picked this up based on a great recommendation from the guys at Atomic tactical. I had never really considered picking up a Nickel Boron coated bolt carrier. However I now fully understand how awesome these things are. I literally wiped almost all of the carbon build up off with just a paper towel. Save me a bunch of time during cleanup. I used this on my 10.5" pistol build, and you better believe this will be going in any of my future guns.

  2. Slicker than snot! 5 Star Review

    Posted by on 5th Aug 2014

    Used this WMD bcg on a 10.5" pistol build. Took it to the range to sight in, fired 100 rounds, 0 failures! This bcg functioned flawlessly. Used in conjunction with a Noveske KX3 flash hider, and Spikes heavy buffer. Cleaning was a breeze. I will be putting one of these in my M4 immediately! I highly recommend this bcg.

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