Weapon system comprising a firearm and a non-lethal means for selectively ejecting a stream of fluid

A weapon comprising a firearm having a butt-end and a fore-end, a barrel through which a projectile may be propelled, a mechanism including a trigger for firing off said projectile, said trigger operable by a digit of a first hand of an operator, and a fluid ejection mechanism for selectively ejecting a stream of fluid in a direction substantially parallel to the axis of the barrel, wherein said fluid ejection mechanism includes a housing mounted on the fore-end of the firearm, mounted in the housing a fluid containing canister having an outlet moveable between fluid retaining and fluid releasing positions, said canister having a lip, said canister held in place by a pin passing through said housing and engaging with the underside of said lip, a nozzle mounted in the housing upstream of the outlet with fluid released from the canister passing through said nozzle, and a fluid release mechanism, and wherein said housing comprises a front face and a rear face, said front face including an opening, wherein fluid ejected through said nozzle passes through said opening, the front face further comprising a hand-grip portion, and wherein said rear face includes an opening, and wherein said fluid release mechanism is actuated through said opening and by the thumb of the operator's second hand gripping said hand-grip, said thumb closing on itself to operate said fluid release mechanism.