I Made a Airsoft Flamethrower, i forget how i did it, i think i put a thing of gas where the Pump is from regular gas, change the model, by using pipe and TA-DA i got a Flamethrower, sure there was a maulfunction that when used to long it Blows up, sure, and also no tank to hold ammo in it, but i know its useful for large Spray area.