For use in: Colt 1911, 1911A1, 1991, Government, MKIV, Gold Cup, Commander in .45, super .38 and 9mm, Officer’s Model .45 and Delta Elite 10mm and 2011 Pistols

Wolff Extra Power firing pin springs are a must in Colt pistols prior to the inclusion of the firing pin safety mechanism and are highly recommended in all pistols. These springs are approximately 85% stronger than original factory firing pin springs.  These springs are used to provide a greater margin of safety, particularly when trying to meet certain drop test requirements.