did you buy the sdr 21 pipe locally or did you have to order online?

ight, i get where you are comin from walrus

cant u tone a gun down? i would feel feel pretty crappy if i seriously hurt someone. i dont expect that there will be any need for speeds in that range. i dont really have much pneumatic experience (obviously)

our arena has bases off the ground and i wanted a long-distance weapon that doesnt have to fire fast. just enough to hit the other base. hauling a generator and compressor around gets troublesome so i wanted c02. for close combat i resort to small arms for rapid and acurate firing. will a remote hos...

thanks man. awesome cannons

i used a niquil bottle and the cap is pretty strong. it puts airsoft bbs about 50 ft

i have been waiting to build a pneumatic cannon until i got all my ideas right and your design is what i want to use. do the tanks deplete completely after each shot? i dont have much experience with sprinkler valves so i was just wondering.

where do you get your co2 cartriges? i want to adapt this design for paintball but i need somewhat rapid firing ability. i want to use a 20oz co2 tank but i her i need a regulator or something