Smith & Wesson K Frame Hammer Assembly - Model 18 - .370" Spur - Used - .22 LR Rimfire K112A .45 ACP Smith & Wesson mainsprings are

Smith & Wesson mainsprings are precision-manufactured and tested to deliver consistent

competition use

J442107 Smith & Wesson J Frame Model 442 Air Weight Concealed Hammer Used

22 Revolvers

Smith & Wesson K Frame Hammer Assembly - Model 18 - .370" Spur - Used - .22 LR Rimfire K112A .45 ACP Smith & Wesson mainsprings areFactory OEM Smith & Wesson K Frame Rimfire Hammer Assembly Part Number: K112A Compatibility: K Frame Model 18 Caliber: . 22 LR (Rimfire) Spur Width: . 370" (Standard Spur) Condition: Used Frame Size: K Frame This is an authentic Smith & Wesson factory hammer assembly designed specifically for K Frame Model 18 rimfire revolvers. The hammer is a critical fire control component that strikes the firing pin to ignite the primer. This hammer features a .