Smith & Wesson K Frame M&P Model K-38, Pre Model 10 Thumb Piece 5 Screw Revolver - V61 .38 special and is available in 4-inch

and is available in 4-inch and 6-inch barrel lengths

38 Special)

It's extremely popular for target shooting

and reliable ignition

reliable operation

Smith & Wesson K Frame M&P Model K-38, Pre Model 10 Thumb Piece 5 Screw Revolver - V61 .38 special and is available in 4-inchSmith & Wesson K Frame Revolver Thumb Piece Pre Model 10, Military & Police, Victory Model, 200 Lend Lease 4 & 5 Screw Revolvers K 22 K 32 K 38 & others This is the split bottom thumb piece New Old Stock!! 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