Revolver

Noun (rĭ-vŏl′vər)

Any handgun whose cartridges are contained in a multi-chambered revolving cylinder separate from the barrel. (Cf. PISTOL) A firearm, usually a handgun, with a cylinder having several chambers so arranged as to rotate around an axis and be discharged successively by the same firing mechanism through a common barrel.  A handgun having a revolving cylinder with several cartridge chambers that may be fired in succession. A pistol having a revolving multichambered cylinder that allows several shots to be discharged without reloading.

Smith & Wesson Revolver 460 Smith & Wesson Revolver M&P