The WMD Guns NiB-X AR-15 Firing Pin (MPN: 1-NIBXFP) is a high-performance replacement component for standard AR-15/M16 bolt carrier groups. Its primary selling point is the proprietary NiB-X Nickel Boron coating, which is designed to reduce friction and increase the component's lifespan compared to standard chrome or phosphate-coated pins.
Key Specifications & Features
- Material: High-quality steel with a NiB-X Nickel Boron finish.
- Hardness: The coating provides a surface hardness of approximately Rc 70.
- Lubricity: Extremely slick surface allows the pin to operate with little to no lubrication, which reduces "carbon cake" buildup and makes cleaning significantly easier.
- Durability: WMD Guns claims this coating is 40% more wear-resistant than traditional chrome plating.
- Compatibility: Fits all standard AR-15/M16 bolt carrier groups (BCGs) chambered in 5.56 NATO / .223 Rem and similar calibers.
- Weight: Approximately 0.28 oz.
Performance Benefits
- Reliability: The increased hardness and reduced friction help ensure consistent primer ignition and reduce the risk of the pin binding due to carbon fouling.
- Corrosion Resistance: The Nickel Boron finish is highly resistant to moisture and environmental corrosion.
- Ease of Maintenance: Carbon typically wipes off the NiB-X surface with a simple cloth, eliminating the need for aggressive scrubbing or specialized solvents.
