Wolff Standard Power Rib Shooters Pak

Power Rib Shooter's Paks - Shooter's paks for Smith & Wesson K, L and N frame revolvers contain a Power Rib mainspring and 1 each of 13, 14 and 15 pound reduced power rebound springs allowing optimum adjustment of the hammer and trigger functions. As mentioned above, these paks can often take the place of expensive "trigger jobs" with better results.