Combustion Guns Made from Trash

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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Posts: 73
Joined: Sun Apr 10, 2011 8:09 am

Fri Sep 25, 2015 2:14 pm

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.


These guns use my standard ammo ( ... gun-Darts/) and can pierce 1/2" plywood.
"Make everything as simple as possible, but not simpler." - Albert Einstein