WMD GUNS AR-15 .223 Rem/5.56mm NATO NiB-X Bolt Assembly (1-NIBXBA556)

Nickel Boron exterior gives the WMD GUNS AR-15 .223 Rem/5.56mm NATO NiB-X Bolt Assembly an incredibly hard finish that protects against wear and corrosion for the ultimate in durability. The extreme smoothness and built-in lubricity of the coating also reduces friction and gives carbon deposits nowhere to stick, so bolt can be easily wiped clean with a cloth or nylon brush. Comes complete with ejector, extractor, and gas rings installed.