7 years ago
ive seen some instructables that use soda bottles
9 years ago
This instructable has an easy to make air tank : www.instructables.com/id/How-To-Make-An-Air-Cannon-In-5-Easy-Steps/
check out this Instructable https://www.instructables.com/id/25MM-Pneumatic-Sniper-Rifle/ . It shows how to build an air gun. Just take the air tank's design, should be step 2. Make sure you use pressure rated pvc.
10 years ago
ok erm try get a empty c02 cartridge for b guns then make a thread on the top for your gun then drill a hole in the side of the cartridge and fit a bike pump thing to it then pump it up and thread it onto your gun