Obsidian Arms Obsidian Enhanced AR-15 Firing Pin Kit Firing Pin, Cam Pin, Cotter Pin

This kit includes an Obsidian Arms enhanced firing pin, retainer pin and cam pin for the best performance and reliability in an AR-15 bolt carrier. Made from4340 alloy steel for strength. Heat treated for durability. Hard Chromed for additional durability, corrosion resistance, and minimal surface friction.