The Ed Brown Firing Pin is precision-engineered specifically for 1911 Officers model pistols in .45 caliber delivering reliable ignition performance and durability.Ed Brown Firing Pin for 1911 OfficersDesigned for .45 caliber 1911 pistolsPrecision-manufactured to exact specificationsDirect replacement part for reliable functionEssential for maintaining proper firing pin function in your 1911 Officers pistol backed by Ed Brown's reputation for quality gunsmithing components.