Sound effect simulation prop gun

The utility model discloses a sound effect simulation prop gun which comprises a gun body, a gun barrel is arranged at the front end of the gun body, a cavity is formed in the gun body, an oxygen storage tank, a combustible gas storage tank and a combustion cavity are arranged in the gun body, the combustion cavity is communicated with the gun barrel, a storage battery is arranged in the gun body, and the storage battery is connected to an electronic fire maker through a wire to supply power to the electronic fire maker. A switch is arranged on a circuit between the electronic fire maker and the storage battery, pressure reducing valves are arranged at gas outlets of the oxygen storage tank and the combustible gas storage tank, a pressure sensor is arranged on a trigger below the gun body and transmits signals to a controller, and the controller controls the switch to be switched on and the pressure reducing valves to be switched on. A cooling structure is arranged in the gun body and comprises a cooling fan