Combustion Guns Made from Trash

[cowscankill]

So easy a cave man could do it, or something.

These are two designs I made from scraps of whatever I had lying around. This is a pretty old video and I'm surprised I never posted it to the forum. The idea was to make a shooting gun for as cheap as possible. They cost about $3 and $4 each, needing maybe one or two fittings to be finished.

Hopefully this will give some motivation for people to see that it's not hard to make a working gun.

[youtube][/youtube]

These guns use my standard ammo (http://www.instructables.com/id/Reusabl ... gun-Darts/) and can pierce 1/2" plywood.