A lightweight applicator system is provided for efficient extrusive dispensing of work material from a cartridge. A body of the system includes handle and cartridge frame portions. The handle portion defines a hub structure, which includes at least first and second retention structures. The cartridge frame portion includes a cage member configured for receiving a cartridge of work material, and is releasably coupled to the hub structure in revolvable manner First and second accessory tools are coupled respectively to the first and second retention structures in detachable manner A drive portion is operably coupled to the body, and includes a drive member passing displaceably into the cartridge frame portion for forcing extrusion of work material therefrom. The handle and cartridge frame portions of the body are formed of one or more predetermined nonmetallic materials.