![Image](http://i208.photobucket.com/albums/bb265/eddbot/minishell.jpg)
it's partially based on someones pen gun (can't remember who, i think it was JSR) the schreader is the fill and exhaust, and the projectile goes in the shell, when it's in the gun (that hasn't been made yet), pin on gun opens schreader-> projectile moves not as far as expected. yeah, it's low volume, but high pressure, and i can shoot anything that isn't toooo heavy, like a bb or something
then i can base a gun around the shell and all it has to do is open the valve