Compact five-shot .357 Magnum revolver with 2.13" stainless steel barrel, enclosed hammer design, and fixed sights. Double-action only with synthetic grip for reliable concealed carry or backup duty.
The Model 640 represents the evolution of a classic design. This small-frame revolver combines the time-tested reliability of the original Centennial with modern manufacturing standards, delivering a firearm that is both simple to operate and genuinely powerful.
The 640 is built on Smith & Wesson's proven J-Frame platform. Its stainless steel frame, barrel, and cylinder provide excellent corrosion resistance and durability. The satin stainless finish resists fingerprints and wear while maintaining a professional appearance.
This is a revolver for those who value reliability above all else. No safeties to manipulate, no magazines to lose, no complex mechanisms to fail. The 640 does one thing exceptionally well: it fires when you need it to. Whether for backup duty, deep concealment, or as a primary defensive tool, the Model 640 delivers the stopping power of .357 Magnum in a package small enough to carry anywhere.