S&W K Frame M&P 1st Model 4-Screw Main Spring .38 Colt – Part# MPC13 surplus Email or call for your

Email or call for your Smith and Wesson gun part needs

Part number: WG12

Model 640 is the stainless Centennial

Replacing a non-pinned barrel with a correct pinned barrel restores both the mechanical integrity and the collector value of a pre-model revolver

Questions about compatibility with your Shield

S&W K Frame M&P 1st Model 4-Screw Main Spring .38 Colt – Part# MPC13 surplus Email or call for yourSmith & Wesson K Frame Military & Police 1st Model Main Spring 4 Screw, Old Style A rare factory original main spring (mainspring) for the earliest production K Frame revolvers. This part was sourced from a Military & Police 1st Model revolver (Serial# 3312) chambered in . 38 Colt one of the earliest S&W hand ejector revolvers ever produced. The main spring powers the hammer, providing the force needed to strike the firing pin with sufficient energy