A portable air gun range is provided to allow individuals to use in virtually any open space. The air gun range has a support frame, a central vertical pole, a curtain to be hung over the support frame behind the central vertical pole, and a target box removably attached to the central vertical pole. A plurality of bars are detachably connected together to construct the support frame with a rectangular profile. The central vertical pole is detachably connected to substantially the centers of a top side and a bottom side of the support frame. The curtain is made of high-density ballistic material and removably attached to the support frame, so as to vertically extend between the support frame and the central vertical pole.