Smith & Wesson J Frame Model 640-3 & Up Hammer & Trigger .357 Magnum MIM New Style Used Wolff Gunsprings 38 Special K Frame Double-Action

38 Special K Frame Double-Action Installation Note

Function: Hand assembly for cylinder rotation

Models: 30

The 6-inch length provides excellent accuracy and sight radius

Smith & Wesson J Frame Model 640-3 & Up Hammer & Trigger .357 Magnum MIM New Style Used Wolff Gunsprings 38 Special K Frame Double-ActionSmith & Wesson J Frame Model 640 3 & Up Hammer & Trigger . 357 Magnum MIM New Style Used (Part# J6403) This listing is for one used Smith & Wesson J Frame Model 640 Centennial hammer and trigger assembly for dash 3 and later variants. These are MIM (Metal Injection Molded) parts in the new style configuration, introduced with the 640 3. This is an OEM factory assembly in used condition, removed from a functioning firearm. Compatibility note: This