Smith & Wesson K Frame Model K22 4-Screw Hand Old Style .22 LR — Used OEM Part 17112C Concealed Hammer Smith & Wesson J Frame

Smith & Wesson J Frame Model 442 Performance Center Bolt Spring & Plunger | Used

Always function test after installation to confirm proper trigger reset and hammer block function before firing

Must have rounded corners on butt of frame

About the 1911 Main Spring

securing it in place within the frame

Smith & Wesson K Frame Model K22 4-Screw Hand Old Style .22 LR — Used OEM Part 17112C Concealed Hammer Smith & Wesson J FrameSmith & Wesson K Frame Model K22 4 Screw Hand Old Style . 22 LR Used OEM Part Genuine Smith & Wesson OEM hand for the K Frame Model K22 (4 Screw) revolver chambered in . 22 LR rimfire. The K22 is a pre model designation S&W began stamping model numbers inside the frame in 195758, so the K22 predates the numbered Model 17. The 4 screw variant refers to the four sideplate screws used on earlier production revolvers before S&W transitioned to the 3 screw