FN FAL Firing Pin. The FAL was predominantly chambered for the 7.62×51mm NATO round, and because of its prevalence and widespread use among the armed forces of many NATO countries during the Cold War it was nicknamed "The right arm of the Free World Our FN FAL Firing Pins are precision machined using our CNC Swiss turning centers. The firing pins are made from domestic 17-4 Stainless Steel then heat treated to an H900 condition. We machine the firing pins from Stainless Steel to help eliminate internal corrosion issues and improve reliability. The heat treated condition helps maximize the life of the firing pin by increases in Strength and Toughness.Pin Length 4.405 inches, Tip Diameter 0.075 inches. Made in the USA!!!