Model 66-1

The Smith & Wesson Model 66 Combat Magnum is a stainless steel variant of the famous Model 19 K-frame revolver, chambered for the .357 Magnum cartridge on Smith & Wesson’s medium-size K frame. Introduced in 1970 in response to demand for a rust-resistant version of the popular Model 19, the Model 66 quickly became one of the most sought-after law enforcement revolvers in America, offering the balance of power and portability that the .357 Magnum K-frame configuration provides in a package that is significantly more resistant to the holster wear, sweat exposure, and outdoor conditions typical of daily police carry.

The Model 66-1 designation identifies a specific engineering revision within the Model 66 series, reflecting Smith & Wesson’s practice of appending dash numbers to model designations when significant engineering changes are incorporated. The -1 variant addressed certain cylinder and yoke modifications from the original production, maintaining the same essential design while improving specific functional or durability characteristics based on user experience and testing feedback.

The K-frame .357 Magnum configuration was the dominant American law enforcement sidearm for a significant portion of the 20th century, with the Models 19 and 66 particularly popular among agencies and officers who valued a revolver that could fire both .357 Magnum and .38 Special ammunition—the latter for training and lighter duty use—from the same platform. The combination of manageable size, good trigger quality, and genuine .357 Magnum power made these revolvers exceptional defensive tools.

Smith & Wesson has discontinued and reintroduced the Model 66 at various points in its production history, and the revolver enjoys continued popularity among revolver enthusiasts, law enforcement officers who prefer the revolver, and collectors who appreciate these iconic American service weapons. Early production examples in excellent condition are particularly valued.