Kit contains (3) reduced power hammer springs, 9, 10 and 12 lb. (factory is 14 lb.), plus (2) reduced power trigger springs, 8 and 10 lb. (factory is 11 lb.). Gives choice of best springs for individual gun. Reduces, smooths hammer actuation and trigger pull, yet ensures reliability on factory issued or professionally tuned guns.
Big Book Catalog, Issue:66, Page:226