Abstract: A handheld firearm such as a standard revolver adapted to dispense a debilitating chemical substance through the butt end, whereby in the shank there is a fixed or detachably mounted butt end comprising a reservoir of the debilitating chemical, such as Chemical Mace or teargas, under pressure. Valve means for dispensing the repellant is actuated by depression of a button located on the detachably mounted butt end portion of the shank, below and out of the way of the hand grip, for operation by the last digit. The presence of the reservoir of the repellant as the mounted butt end of the shank portion of the gun allows for operation without interference with a strong hand grip, avoids accidental lethal firing of the weapon, when detachably mounted permits fast recharging in the event the reservoir is depleted or in the event that there is a mechanical failure of the discharge system.

Abstract: A handheld firearm such as a standard revolver is adapted to dispense a debilitating chemical substance through the butt end. Accordingly, modification in the hollow shank of a revolver between the paired wooden grips has mounted therein a small cannister of a debilitating chemical, such as Chemical Mace or teargas, under pressure. The cannister includes a valve and a nozzle at the open end which points through an aperture in the butt end of the shank and is reciprocally movable towards and away from the aperture in the shank. The grip is modified with an aperture which is recessed from the normal handling surface of the weapon. The recessed aperture is positioned under preferably the second or third finger and may be actuated by the digit moving inwardly to depress a reciprocating spring-loaded button in the indentation. Upon depression of the button, the cannister is moved towards the butt end to operate the nozzle causing the chemical to be discharged.