Wilson Combat Custom-Tune Spring Kits contain the finest gun springs available, made from high tensile spring wire for reliable function, smooth operation, consistency and long life. The Full-Size/Government .45 ACP "Custom-Tune" Spring Kit Includes: 10 lb. reduced power recoil spring - lighter spring for light practice rounds, heavy-duty for longer life. It also has a 18.5 lb extra power recoil spring which increases feeding reliability when shooting factory loads. It has a reduced power mainspring and extra power firing pin spring. A properly tuned 1911 Auto is unquestionably the finest combat pistol in the world. The first step when tuning your pistol is replacing the stock springs with Wilson "Custom-Tune" Springs. These springs are produced from the finest high tensile spring steel, assuring a consistently smooth action, positive ignition, and proper timing.
Determined at checkout.