Smith_&_Wesson_Model_640
Smith & Wesson Model 640
Revolver
The Smith & Wesson Model 640 revolver is a 5-shot snubnosed revolver that is chambered in either .38 Special or .357 Magnum caliber introduced in 1989. Like other "J-frame" Smith & Wesson revolvers, it has a swing-out cylinder, but this model features a concealed hammer, and is part of the Centennial line.[2]