Wolff 17113 Ruger~ Sp-101~ Kit
Wolff 17113 Ruger~ Sp-101~ Kit, Contains (1) 9 lb., (1) 10 lb., and (1) 12 lb. reduced power hammer spring for tailoring trigger pull.Includes (1) 8 lb. reduced power trigger return spring. Does not fit SP101 .22 manufacturered during & after 2011. Mfg: Wolff