S&W J Frame Models 36, 37, 38, 42, 49, 60, 63, 317 Trigger MIM 228770000 model 10 Compatibility: J Frame Models 42

Compatibility: J Frame Models 42

Installation requires partial disassembly of your S&W J-Frame revolver to access the hammer spring (mainspring)

Compatibility: N Frame Model 629 (new style)

Manufacturer: Smith & Wesson (factory original)

S&W J Frame Models 36, 37, 38, 42, 49, 60, 63, 317 Trigger MIM 228770000 model 10 Compatibility: J Frame Models 42Designed for Smith & Wesson J Frame Models including 36, 37, 38, 42, 49, 60, 63, 317, 331, 332, 337, 340, 342, 351PD, 360, 360PD, 442, 631, 632, 637, 638, 640, 642, and 649, these MIM new style trigger offer precision crafted pistol parts, ideal for expert level maintenance and upgrades. Part# 228770000 Smith and Wesson Factory New Part Please call or email with any questions! How to determine the model number of your Smith & Wesson Revolver. Swing