NiB-X Firing Pin
NiB-X Firing Pin, The WMD Guns 5.56 NiB-X Firing Pin was made to be the ideal product for any person needing a high quality selection. Featuring WMD's proprietary NiB-X Nickel Boron coating for a hard slick surface. With less friction, carbon is easier to clean off which allows this firing pin to be more corrosion resistant and longer lasting.