The Smith & Wesson Model 686 is a six- or seven-shot double-action revolver manufactured by Smith & Wesson and chambered for the .357 Magnum cartridge; it will also chamber and fire .38 Special cartridges. Smith & Wesson introduced the Model 686 in 1981. It is the stainless steel version of the Model 586, which featured a blued steel finish. They are available ported and unported with a choice of 6- or 7-round cylinders.[1]

The Model 686 is based on S&W's L (medium) revolver frame. During the 1980s, Smith & Wesson developed its L-Frame line of .357 Magnums: the Model 581, Model 586, Model 681 and Model 686. The Models 581 and 681 have fixed sights, whereas the 586 and 686 use adjustable sights.[2]