Smith & Wesson K Frame Model 13 Thumb Piece & Nut - Used - K875 J frame which includes the Model 17

which includes the Model 17 (K-22 Masterpiece with 6-inch barrel) and Model 48 (K-22 Masterpiece MRF in

Some fitting may be required for optimal performance

Genuine Smith & Wesson factory part

scratch-free finish that separates amateur work from professional results

Smith & Wesson K Frame Model 13 Thumb Piece & Nut - Used - K875 J frame which includes the Model 17K875 Smith & Wesson Used K Frame Model 13 Thumb Piece & Nut Cleaned, Inspected, and Guaranteed How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older than 1957 58. In this case we can possibly still find the part you need with the serial # . If this is the case