64107E Smith & Wesson K Frame Revolver Model 66 Trigger .265" Wide Used Part k10-5u The Model 637 features a

The Model 637 features a visible hammer allowing both single-action and double-action operation

This is a used factory-original thumb piece and nut for the Smith & Wesson N Frame Model 25 chambered in

Inconsistent ignition

Essential component for reliable ignition

64107E Smith & Wesson K Frame Revolver Model 66 Trigger .265" Wide Used Part k10-5u The Model 637 features a64107E Smith & Wesson K Frame Revolver Model 66 . 357 Magnum Trigger . 265" Wide Stainless Steel (Old Style) Used Part We sell Smith and Wesson Pistol and Revolver Used, New Old stock, Refurbished & New parts. Shoot us an email or give us a call for all your S&W gun part needs. USA Guns And Gear Gunsmiths Required: Disassembly and Assembly required to replace part. Some parts may require installation and fitting by a qualified gun smith. Factory