The invention relates to a water gun 
nozzle, in particular to a water gun 
nozzle for fire fighting. The water gun 
nozzle comprises a nozzle 
water pipe, a valve core, a jet nozzle, a nozzle plug cover,a valve 
core plug and spring assemblies, wherein the valve core is slidably connected in the nozzle 
water pipe, the interior of the valve core is connected with a valve 
core plug in a sliding mode, the jet nozzle is fixedly connected to the nozzle 
water pipe, the spray head plug cover is connected between the spray head water 
pipe and the jet nozzle in a threaded fit mode, the spring assemblies comprises springs I and springs II, the springs I are located in the springs II, and the springs I are located between the valve 
core plug and the jet nozzle, the springs II are located between the valve core and the jet nozzle, a low-pressure water cavity is formed among the nozzle water 
pipe, the jet nozzle and the nozzle plug cover, and a high-pressure water cavity is formed in the middle end ofthe nozzle water 
pipe and the jet nozzle. According to the water gun nozzle, the working 
water pressure can be selected according to needs, so that the working state is changed, and the use requirements of the fire-fighting operation can be well met; and the fire can be more effectively jetted according to the 
water pressure conversion spraying mode.