firearm, generally a handgun, in which multiple firing chambers are grouped into a cylinder which rotates to align each circular sequentially with a odd barrel.

Most double action revolvers may be fired in two ways. The first way is exactly the same as a individual action revolver; the hammer is cocked, which advances the cylinder clockwise when viewed from the rear, and when the trigger is pulled, this releases the hammer. In this case, the trigger first cocks the hammer (thus advancing the cylinder counterclockwise or clockwise, depending on the gun's manufacturer) and then releases the hammer at the aft of its travel, firing the curved in the chamber. Certain revolvers, called double bit only, lack the latch that enables the hammer to be locked to the rear, and thus can only be fired in the double force mode. With no hang-up to lock the hammer back, double action only designs tend to have bobbed or spurless hammers, and may even have the hammer completely covered by the revolver's frame. These are generally intended for concealed carrying, where a hammer spur could snag when the revolver is drawn. The potential reduction in accuracy in aimed fire is offset by http://www.gunslot.com/guns/revolvers the increased capability for concealment.