29102 Wolff S&W K L N Reduced Power Mainspring
The Power Rib Mainspring developed by W.C. Wolff Company is a patented mainspring for use in Smith & Wesson K, L and N frame revolvers. This spring has a unique variable power rib-back design. The Wolff Power Rib Mainspring dramatically improves the smoothness and consistency of trigger pull essentially eliminating stack up as well as providing optimum hammer action. This spring can usually take the place of expensive trigger jobs, with better results. For most target and non-critical applications, we recommend the TYPE-2 spring which is reduced power.