A fore-grip specially suited and configured to mount upon a tank-style fire-extinguisher for use as a defensive tool, the fore-grip including a handle that mounts near the base or bottom-end of the extinguisher tank. A tank bracket is attached to the tank of the fire extinguisher with the fore-grip mounted to the bracket, which can include a clip for the extinguisher nozzle. A user is able to concurrently grasp the handle of the fore-grip to lift and to lift and aim the fire-extinguisher, while opening the manual valve to discharge the pressurized propellant from the nozzle.