Smith & Wesson K Frame M&P 1st Model Thumb Piece & Nut - MPC10 | .38 Colt | Serial #3312 M&P9 Barrel Improper installation can cause trigger

Improper installation can cause trigger malfunctions or failure to reset

and textured camouflage

ensuring it stays in position

Restoration Authenticity: Aftermarket parts compromise collector value

Enhanced accuracy: More secure grip improves shot placement

Smith & Wesson K Frame M&P 1st Model Thumb Piece & Nut - MPC10 | .38 Colt | Serial #3312 M&P9 Barrel Improper installation can cause triggerAuthentic 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