An actuator assembly is provided. The actuator assembly includes housingconfiguredfor operable engagement by a user, a trigger assembly operably supported onthe housing, a gascartridge releasably secured to the housing, a valve assembly mounted withinthe housing forcontrolling the flow of pressurized gas through the housing and a cylinderactuator operablyoperably connected to the valve assembly. The cylinder actuator includes apiston selectivelyextendable therefrom configured for depressing a plunger. The piston includesa head having aninlet surface disposed within an inlet chamber of the cylinder actuator and anoutlet surfacedisposed within the outlet chamber of the cylinder actuator. The exposedsurface area of the firstsurface is equal to the exposed surface of the second surface.
