Henry 22 Lever Action Firing Pin. Made in house with the use of our CNC Machines. The Henry 22 firing pins are made from domestic 17-4 Stainless Steel then heat treated to an H900 condition. We machine the Henry 22 firing pins from SS 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 3.641 inches. Made in the USA or not made at all.