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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.


AR-15, Issue:11, Page:040
Big Book Catalog, Issue:70, Page:040

SPECS: Steel with Nickel-Boron coating.

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