For Positive Ignition & Reduced Risk Of Misfire
Replacement firing pin has a larger surface area on the impact point than the factory pin to help ensure positive ignition. Reduces chance of a misfire with ammo made of slightly harder than normal brass. High surface hardness resists wear, too, so you can fire thousands of rounds from your Ruger .22 pistol.
Big Book Catalog, Issue:66, Page:210
SPECS: A2 tool steel, in the white. Fits Ruger Mark I/II/III and 22/45™ pistols.