
this is a good one. i made this gun out of a 4 dollar air compressor, a 9 mm tube, a 7 mm tube, rubber tubing and a batery pack (plus electrical tape) and it can propel plastic BBs over 330 fps for a price of under 15 dollars australian
(not including batery pack)
if you wanna build it then click this link to make it. ITS EASY!
http://www.rotteneggs.com/r3/show/se/181505.html
ive also included a few of my videos.
http://s39.photobucket.com/albums/e177/ ... deo084.flv
(it may take you some time to spot the BBs)
http://s39.photobucket.com/albums/e177/ ... 0_1974.flv
(sorry my rooms so messy)
http://s39.photobucket.com/albums/e177/ ... 0_1992.flv
(my gun kinda screwed up but it still shot with good power through a paper target)
note that the rounds per magazine where very short. at the time i only had enough space for up to 20 plastic BBs when now i can fit up to 60.