the trigger is a blow gun valve...you can get them at about any hardware store and the are about 5 bucks at the most

what do u use for the barrel and how do u attach it on the pipe?

very nice...I think I'm going to make one

simple and effective. I like it

dude the stand is awesome, I love it

that gun is "Flippin Sweet" looks like it could really kick, I love it

that is a very good idea, I would have never thought of it. Good job

is it combustion?

OMG :!: I just got a great idea for a fuel :!: You know those Nasacort nasal spray bottels :?: After one is empty, fill it with rubbing alcohol. One squirt works great. My dad gets me 99.9% pure alcohol but I'm sure regular 70% will work too. Trust me I use it on mine all the time and with one squir...

yeah it really hurts to have a bb lodged under your skin...I know form experience I dont know if it would get too extreme power, but if it did...OW

I modeled one of my sketches after this cannon except mine had propane injection on it. Nice cannon.

propane is a high powered fuel, is it not?

oh , that explains alot. thanx

Awesome gun but one problem...ABS is not pressure rated. It could weaken and explode. I'm not being critical but that is very dangerous.

are hybrids powered by pneumatics and combustion If so, how in the crap does that work