AR-15 Nickel Boron Bolt Carrier Group
AR-15 Nickel Boron Bolt Carrier Group provides extreme durability, performance, and reliability. The Nickel Boron coating is corrosion resistant and harder than Nickel Teflon, Melonite, or Hard Chrome with a hardness of RC 72. Cycling is smoother and debris and buildup can simply be wiped free.
This Nickel Boron Bolt Carrier Group for the AR-15 is a product of WMD Guns. WMD is the industry’s leading source for high-performance Nickel Boron coatings. But beware: there are imitators out there, and not all Nickel Boron coatings are equal. Do not confuse Nickel Boron with Electroless Nickel, Electroless Nickel with Teflon, or Electroless Nickel with Boron Nitride, which fail to deliver the performance levels of NiB-X.
All components in this BCG are Made in the USA, Mil-Spec Components. The Bolt assembly is case hardened, shot peened, magnetic particle inspected, and constructed of Carpenter 158 steel. The extractor includes a high performance spring and black buffer. The AR-15 style Carrier is machined from 8620 steel, heat treated, and case hardened. Attachment of the Gas Key is done with grade 8 hardened fasteners, which are staked per mil-specs. The Gas Key is sealed with the proper gasket as well. Bolt Carrier Group is also available with a Nickel Boron coated mil-spec AR15 Hammer. The NiB-X Hammer ensures the smoothest cycling possible.