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

this side plate assembly delivers the quality and precision you expect from Smith & Wesson

Authentic Smith & Wesson factory barrel designed specifically for M&P 9 M2

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

Genuine OEM Part: Factory Smith & Wesson part #390900000

Tip: Most gunsmiths prefer the #54 bit as it creates a slightly tighter "press fit" for the pin

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