Smith & Wesson Model 19 K Frame Strain Screw Square Butt .357 Magnum — Used

Smith & Wesson Model 19 K Frame Strain Screw — Square Butt — Used

This listing is for a used, functional Smith & Wesson K Frame Model 19 Combat Magnum strain screw for square butt grip frames. Part number 19173B. The strain screw secures and adjusts mainspring tension on the grip frame, directly influencing trigger pull weight.

Part Details

• Part Number: 19173B
• Frame: K Frame
• Model: Model 19 Combat Magnum
• Caliber: .357 Magnum
• Grip Frame: Square Butt
• Style: Old Style
• Condition: Used — Functional, shows normal wear

Compatibility

Fits Smith & Wesson K Frame Model 19 revolvers with square butt grip frames. Old style — verify your dash number before ordering.

Installation Note

Disassembly and reassembly required. Installation by a qualified gunsmith is recommended.