Abstract: A cartridge for a cartridge gun in which the cartridge can be connected self-supportingly to the cartridge gun, and for receiving a bag filled with an injection material- The cartridge includes a housing member in which a piston is arranged longitudinally movably toward an and closed off by a lid. The lid has an opening through which ah injection nozzle is received. The housing member has on an end remote from the lid an area in form of an annular connecting piece for facilitating connection of the cartridge to a cartridge gun.