A set of all the springs necessary to construct, rebuild or recondition your 1911. These springs are built from high tensile spring steel, ensuring a consistently smooth action, positive ignition and proper timing. Set includes: Sear spring, 18-1/2 lb heavy-duty recoil spring, extra-power firing pin return spring, plunger spring, magazine release spring and mainspring. Kit Includes:Sear springHeavy duty recoil spring 18-1/2 lbExtra power firing pin return springPlunger springMagazine catch springMainspring