Patent ID: 7603996

Claim:
A structure for changing a gas cylinder for air guns and paintball guns comprising: a) a gun having a handle having: i) a bottle frame having a lateral through hole located therein for accommodating the gas cylinder; ii) a prop located in a bottom of the bottle frame and being movable upwardly and downwardly between first and second positions iii) a knob selectively moving the prop between first and second positions; iv) a valve located at a top of the bottle frame and connected to a gas supply valve tube; and v) a track located on each of two opposing sides of the handle and extending from a front to a rear of each side of the handle; and b) a handle cover being a U-shaped structure and having: i) an embedded member located on each of two opposing handle cover sides thereof and inserted into a corresponding track, the handle cover is movable along the track between open and closed positions, the open position corresponding to a maximum travel distance of the handle cover along the track in a direction away from the bottle frame; and ii) a bottom cover selectively covering the knob, wherein, when the handle cover is located in the closed position, the handle cover covers the bottle frame and the knob; and, when the handle cover is located in the open position, the handle cover is spaced apart from the bottle frame and the knob, the open position exposing the lateral through hole of the bottle frame to allow the gas cylinder to be selectively inserted into and removed from the bottle frame through a side of the handle of the gun, wherein, during the reloading of the gas cylinder, the handle cover is configured to remain connected to the handle of the gun in both the open position and the closed position.