Smith & Wesson K Frame Rebound Slide Assembly - Model 18-4 - Used - .22 LR K317 Model 940 The Type-2 mainspring combined with

The Type-2 mainspring combined with reduced power rebound springs delivers professional-grade trigger improvement

Condition: Factory New (NOS - New Old Stock)

Ideal for range use

Model numbers began in 1957-58

The Model 637's exposed hammer allows for single-action shooting when precision is needed

Smith & Wesson K Frame Rebound Slide Assembly - Model 18-4 - Used - .22 LR K317 Model 940 The Type-2 mainspring combined withFactory OEM Smith & Wesson K Frame Rebound Slide Assembly Part Number: K317 Compatibility: K Frame Model 18 4 Caliber: . 22 LR (Rimfire) Condition: Used Frame Size: K Frame This is an authentic Smith & Wesson factory rebound slide assembly for K Frame Model 18 4 revolvers. The rebound slide is a critical internal component that controls the trigger return mechanism and ensures proper hammer function in double action operation. Features: Genuine Smith