The present invention describes a
cartridge magazine assembly for air guns and paintball guns, and the
magazine is designed as an independent device inserted into a breech of a gun to connect a feeder of the gun. The
magazine has a vertical feeding chamber at the front of the magazine, and a casing can be added onto the feeding chamber for feeding paintballs or
pellets of different sizes, and a feeder spring is installed to pop a feeder bracket to define the feeding device. A
bottle frame with through holes is defined at the rear of the magazine, a hopper is secured into the bottom of the
bottle frame by a screw, and the hopper can be moved up and down manually or by a tool. A valve connected with a
gas supply tube is installed at the top of the hopper, a flexible plastic feeder case is installed at the top of the magazine or a valve member is installed at the connection of the hopper and the feeding chamber, so that paintballs or
pellets are fed from an end of the feeding chamber of the magazine and a
gas cylinder is installed from a side of the magazine and pushed upward by a secured hopper underneath. The value controls the compressed gas in the
gas cylinder to
discharge the gas from the valve tube, so as to supply powerful push for shooting when the magazine is installed into a gun, and provide an easy and quick way for loading and storing paintballs or
pellets and carrying and changing the
gas cylinder.