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Wmd Guns
The WMD NIB-X firing pin is a critical spare part for AR-15 bolt carrier groups, built to the same exacting standards as WMD Guns' complete nickel boron coated BCGs. If you run a WMD BCG or want a drop-in replacement firing pin that matches their high-performance coatings and materials, this 5.56 pin delivers the reliability you depend on downrange. Nickel boron coating sheds fouling, resists corrosion, and cuts friction — traits that matter most when your AR needs to fire every time, in any condition.
Keeping a spare firing pin on hand is smart practice for any serious shooter. Whether you're building a backup upper, maintaining your duty rifle, or simply want a reliable spare in your range bag, the WMD NIB-X pin handles the job without compromise. The nickel boron finish is paired with materials and manufacturing that WMD applies across their entire bolt carrier line, so you know you're getting consistency and quality.
This is a straightforward, no-fuss spare part — no exotic features, no surprises, just a well-made firing pin sized for 5.56/.223 AR platforms. If your WMD BCG ever needs a fresh pin or you want to keep one on standby, this is the part that matches the performance you already trust.
| Caliber | 5.56 |
| Coating | NiB-X (Nickel Boron) |
| Type | Firing Pin Spare Part |
| Manufacturer | WMD Guns |
Yes — this is a spare firing pin sized for 5.56 AR platforms. It's designed to fit standard AR bolt carrier groups, including WMD's own nickel boron BCGs. If you're unsure whether it matches your specific bolt carrier, check your BCG documentation or reach out to us.
Nickel boron coating reduces friction and fouling, resists corrosion, and improves longevity compared to uncoated steel. It's the same proven finish WMD applies to their complete bolt carrier groups for added durability and ease of cleaning.
This is a firing pin only — a spare part for use as a replacement or backup. It's not a complete BCG.
Wmd Guns
The WMD NIB-X firing pin is a critical spare part for AR-15 bolt carrier groups, built to the same exacting standards as WMD Guns' complete nickel boron coated BCGs. If you run a WMD BCG or want a drop-in replacement firing pin that matches their high-performance coatings and materials, this 5.56 pin delivers the reliability you depend on downrange. Nickel boron coating sheds fouling, resists corrosion, and cuts friction — traits that matter most when your AR needs to fire every time, in any condition.
Keeping a spare firing pin on hand is smart practice for any serious shooter. Whether you're building a backup upper, maintaining your duty rifle, or simply want a reliable spare in your range bag, the WMD NIB-X pin handles the job without compromise. The nickel boron finish is paired with materials and manufacturing that WMD applies across their entire bolt carrier line, so you know you're getting consistency and quality.
This is a straightforward, no-fuss spare part — no exotic features, no surprises, just a well-made firing pin sized for 5.56/.223 AR platforms. If your WMD BCG ever needs a fresh pin or you want to keep one on standby, this is the part that matches the performance you already trust.
| Caliber | 5.56 |
| Coating | NiB-X (Nickel Boron) |
| Type | Firing Pin Spare Part |
| Manufacturer | WMD Guns |
Yes — this is a spare firing pin sized for 5.56 AR platforms. It's designed to fit standard AR bolt carrier groups, including WMD's own nickel boron BCGs. If you're unsure whether it matches your specific bolt carrier, check your BCG documentation or reach out to us.
Nickel boron coating reduces friction and fouling, resists corrosion, and improves longevity compared to uncoated steel. It's the same proven finish WMD applies to their complete bolt carrier groups for added durability and ease of cleaning.
This is a firing pin only — a spare part for use as a replacement or backup. It's not a complete BCG.
