AR-15 firing pin features proprietary NiB-X coating that gives superior lubricity, corrosion-resistance and surface hardness of Rc-70. Fits all standard AR-15s. Mfg: Wmd Guns SPECS: Steel with Nickel-Boron coating.
$18.99
Nickel-Boron Coating Resists Wear & Corrosion
AR-15 firing pin features proprietary NiB-X coating that gives superior lubricity, corrosion-resistance and surface hardness of Rc-70. Fits all standard AR-15s. Mfg: Wmd Guns SPECS: Steel with Nickel-Boron coating.