Buy Smith & Wesson Model 629 44 Magnum 4-inch Revolver Online. Smith & Wesson’s large frame revolvers are a favorite choice among handgun hunters, competitive shooters and revolver enthusiasts. These revolvers are available from production, M&P, Classics, Champion Series and Performance Center in a variety of chamberings in .357 Magnum, .44 Magnum and .45 ACP. Offered in several different barrel lengths, Smith & Wesson provides the user plenty of options for a variety of shooting applications.