The WMD Guns NiB-X Firing Pin (brand part no. 1-NIBXFP) brings WMD’s proprietary NiB-X coating to one of the most safety-critical parts of a 5.56 AR-15 bolt carrier group. The firing pin strikes the primer to fire each round, so a fouled or worn pin directly affects ignition reliability. WMD Guns polishes and coats the firing pin to reduce fouling adherence, matching the same finish used on its complete NiB-X bolt carrier groups. It is a simple, inexpensive way to upgrade or replace a firing pin with a part built to the same coating standard as WMD’s flagship BCGs.

Key Specifications

• Chambered for 5.56 NATO AR-15 bolt carrier groups.
• Finished with WMD’s NiB-X coating, polished to reduce fouling adherence.
• Matches the finish used on WMD’s complete NiB-X BCGs.

Frequently Asked Questions

What does a firing pin do? It strikes the primer to ignite each round.

What coating does this firing pin use? WMD’s NiB-X coating, polished to resist fouling.

What caliber BCG is this firing pin built for? 5.56 NATO.

Buy the WMD Guns NiB-X 5.56 Firing Pin

Order this WMD Guns firing pin from WMD Guns through our rifle parts lineup. It ships fast from our Lubbock, Texas gun shop, fully insured.