This top quality, professional cartridge gun is designed for use with 215mm or 250mm integral nozzle cartridges Construction ensures a long working life with high load and stress factors Incorporates the powerful Cox Mk 5 mechanism Operator comfort and efficiency of use is ensured by a die-cast aluminum, profiled hand grip for strength and lightness, which is contoured for use by all hand sizes and allows the use of smooth, effortless strokes Advanced design of drive mechanism has a patented catchplate system combined with use of a hardened steel drive rod which prevents notching and scoring of the rod The open mechanism facilitates easy dismantling and replacement of parts when required