those are all spring. the one im building uses a co2 hookup and regulator. i like the look though. it will look alot like kanedas new gun but shorter and with a magazine

this gun is going to use a magazine to feed ammo into the barrel with a bolt that catches a round outta the mag.The bolt is retracted by a piston that uses extra air out of the barrel.It works like a gas opperated machine gun.

where do u get microvalves

a vortex block would be better than a cloud however it would have to be timed with the motor so it fires with the barrel

i live in america you really would send me some that would be great my email is viper24@mac

thank you so much man that is really helpful

where do u get microvalves

i know nothing about diaphragm cannons could someone please post some plans

did u make the land mines and if u did how did u make the land mines and how much did they cost