Smith & Wesson K Frame Model 19 Strain Screw (Square Butt)
Strain screw for Smith & Wesson K Frame Model 19 Combat Magnum revolver with square butt grip frame.
- Part Number: 19173B
- Frame: K Frame
- Model: Model 19 Combat Magnum
- Caliber: .357 Magnum
- Grip Frame: Square butt
- Style: Old style
- Condition: Used, functional
This authentic S&W strain screw secures the mainspring to the grip frame on square butt Model 19 revolvers.