DESCRIZIONE
There is described an underwater gun powered by elastic elements including a barrel (10a,10b), one or more elastic elements (20), a handle (18) and at least one locking and release mechanism of a shaft thrown from the gun under the action of the elastic elements previously loaded in tension. The barrel includes at least two portions hinged to each other and movable in mutual rotation about the axis of a binge pin (15) between an open position, in which the elastic elements can be hooked in the unstretched condition to the barrel, and a closed position, in which the elastic elements are loaded in a tension condition.