Homemade Semi-Auto Paintball Gun!

A little project that I’ve been working on for a few months. It is a semi-auto paintball gun, powered by compressed air. It uses a homemade, quick-acting piston valve to fire. Triggering is done by a blowgun valve located, well, at the trigger. Very fun project, and I can get lots of shots off of my back-pack mounted air tank. And of course, a little video showcasing some of it’s features:

And A video of it with a new barrel, shooting nail darts and marbles. This was really fun: