Wolff COLT 1911 .45, SERVICE PAK TYPE-I
For use in:
Colt 1911, 1911A1, 1991, Gov’t, MKIV, and Gold Cup series pistols. Please choose by caliber as magazine springs are caliber specific.
Type I – contains the following factory specification springs: factory weight recoil spring, firing pin spring (extra power), hammer spring, magazine catch spring, plunger tube spring, firing pin safety spring and sear spring.