This excellent non-firing replica has a working action and a strong, thick frame for realism, but does not chamber or fire real or blank ammo. It functions in both single and double action, with a cylinder that rotates but does not swing out. HISTORY: This .357 Magnum "Chief's Special" was developed in the early- to mid-1930s by Smith and Wesson in an attempt to regain preeminence as the leading supplier of law enforcement weapons. S&W lost ground after Colt introduced its .38 Special. Colt's .38 Special gained favor because its slightly faster muzzle velocity enabled it to penetrate the car doors and "bullet-proof vests" gangsters and bootleggers were using for cover during gun battles with lawmen.