Smith & Wesson K-Frame Cylinder Stop MPC11 - M&P 1st Model 4-Screw .38 Colt - Factory OEM Part Model 438 The hammerless (internal hammer) design

The hammerless (internal hammer) design prevents snagging during draw from concealment

9 lb reduced power hammer spring (1)

This component is ideal for:

Ensures reliable feeding of

Model: New Century (Triple Lock)

Smith & Wesson K-Frame Cylinder Stop MPC11 - M&P 1st Model 4-Screw .38 Colt - Factory OEM Part Model 438 The hammerless (internal hammer) designAuthentic Smith & Wesson K Frame Cylinder Stop MPC11 Factory OEM part for Smith & Wesson Military & Police 1st Model revolvers. This cylinder stop (part number MPC11) is an essential timing component that ensures proper cylinder lockup and safe operation of your vintage K frame revolver. Compatibility & Fitment Confirmed Compatible With: Smith & Wesson K Frame Military & Police 1st Model (4 screw frame) . 38 Colt caliber chambering Serial number