easy two man air cannon (shoots 20-150yrds)

this cannon can fire up to 150yrds depending on the shape and size of the pellet you use.
this cannon is easy to make and use as the parts are extremely simple and every house will have these parts.
WARNING: this cannon shoots at <650fps and can blind people/pets. do not fire indoors. also beware of recoil.
DISCLAIMER: i am NOT responsible for any damage you cause to anything/one while using this gun.
i will add more photos and videos soon!!!
Warning: in the UK its illegal to take this outside of your garden or outside of private land that you are allowed to use.
I don't know about other country's pm if you know.

Step 1 What you need

to make this cannon you will need three parts;

- a pump

- a pipe

- clay/plasticine