Wmd Guns Ar-15 Nickel Boron Bolt Carrier Groups
We found a great deal on the Wmd Guns Ar-15 Nickel Boron Bolt Carrier Groups for only $199.99 at Brownells.
These AR15 Bolt Carrier Groups feature WMD’s NiB-X Nickel Boron Coating, which 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.Components included in the Assembly are mil-spec and manufactured by US suppliers. 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. Mfg: Wmd Guns SPECS: Fits AR15 mil-spec upper receivers. Nickel Boron coated. Bolt carpenter 158 steel, case hardened, shot peened, magnetic particle inspected. Extractor includes black buffer, black o-ring, and spring. Carrier 8620 steel, heat treated, and case hardened. Gas Key p