Smith & Wesson K Frame M&P 1st Model Thumb Piece & Nut - MPC10 | .38 Colt | Serial #3312 Model 13 This listing is for the

This listing is for the main spring only

Genuine Smith & Wesson factory new stainless steel cylinder assembly designed for L Frame Model 681 and 686 revolvers chambered in

used part suitable for professional maintenance or restoration projects

or maintaining your collection

Smith & Wesson Factory OEM

Smith & Wesson K Frame M&P 1st Model Thumb Piece & Nut - MPC10 | .38 Colt | Serial #3312 Model 13 This listing is for theAuthentic Smith & Wesson K Frame Thumb Piece & Nut Part Number: MPC10 Condition: Used OEM Finish: Blue Steel Compatibility Scope This factory original thumb piece and nut assembly is specifically engineered for: Model: Smith & Wesson K Frame Military & Police 1st Model Serial Range: Fits Serial #3312 and similar 1st generation K frames Configuration: 4 screw sideplate design Caliber: . 38 Colt cartridge chambering Frame Size: K Frame (medium frame