Right now the M&P
Smith and Wesson's most popular revolver was the .38 Special, widely used by police officers, both in the United States and abroad.
Remington, Mossberg, Colt, Springfield Arms and Smith & Wesson
A shotgun made for Smith and Wesson, sold under the Smith and Wesson name.
The Wesson part of Smith and Wesson.
Standard Catalog of Smith and Wesson
Smith and Wesson will tell you if you call them
Horace Smith, Daniel Wesson
Smith & Wesson was founded in 1852.
Smith and Wesson 500 magnum revolver
Most likley an assembly number.
That all depends on what kind of Smith & Wesson it is.
Standard Catalog of Smith and Wesson, 3rd ed.