Custom-Tune Spring Kits for full size 1911/Government 45 ACP contain the finest gun springs available, made from high tensile spring wire for reliable function, smooth operation, consistency and long life.The Spring Kit Includes 10 lb. reduced power recoil spring, lighter spring for light practice rounds, heavy duty for longer life; 18 1/2 lb. extra power recoil spring, increases feeding reliability when shooting factory loads, heavy duty for longer life; reduced power mainspring (hammer spring) reduced hammer tension, resulting in easier cycling and up to 25% reduced trigger pull; extra power firing pin spring, increases firing pin tension for longer life and enhanced safety should the pistol be dropped.
Specifications:

Type	Spring Kit
Model	1911
Dimensions
Size	Full Size
Material	Steel
Action
Trigger
Safety
Thread Pattern
Finish	Black
Bolt Type
Hand
Hammer Type
Max Capacity