22877U Smith & Wesson Revolver J Frame MIM Trigger Ass'y Fits Multiple Models Target Trigger Precision machined for proper cylinder

Precision machined for proper cylinder alignment

Installation: Simple screw-in installation replaces your existing front bead

This component requires disassembly and reassembly by a qualified gunsmith

Cylinder stop must engage cylinder notches at precisely the right moment

22877U Smith & Wesson Revolver J Frame MIM Trigger Ass'y Fits Multiple Models Target Trigger Precision machined for proper cylinderJ190U Smith and Wesson Revolver J Frame MIM Newest Style . 310" Wide Trigger Assembly Fits Models: 36, 37, 38, 42, 49, 60, 63, 317, 331, 331, 337, 340, 342, 351PD 360, 360PD, 442, 631, 632, 637, 638, 640, 642, 649, 312" Wide Please call or email with any questions! 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