well, anyway, the barrel is a internally threaded steel pipe, two of them, that were originally meant to hang a light fixture. we recently redid our kitchen, and they were left over, and my dad gave them to me. they were held together by internal steel 1/4 inch nipples, and those would have blocked any ammo from coming out, so I searched for something to hold it together. I ended up using some rigid plastic tube from the inside of a free fire extinguisher. so then I built the breech. the rigid plastic tube was hard to get on, so it would sure not slide. I looked for another material. I found some 1/2 inch, grey electrical conduit that fit nearly prefect, so I used that. The carbon fiber handle on the breech is a bike bar end (me and my dad mountain bike). The modification that allowed it to become semi-auto is the tee coming off the side, with the 1/4 inch ball valve and quick disconnect nipple, and the gauge. I'll try to get a pic that actually shows the whole gun up later.
(sorry the pics are so crappy
) click the pictures to enlarge.
an overview
the carbon fiber breech handle
breech slid forward viewed from the front...
(That's my compressor in the background)
and from the side
a 3/4 view from the back
the main modification that allows it to be semi-auto
the air chamber
what you see when you are holding the gun
a crappy pic of the muzzle thingy (for aesthetics)
that's one end of my workshop, notice the ozzfest sticker on the big metal cabinet.
Great work, you hook that upto your compressor right? You should polish everything until it shines and you can see your reflection. Like those cars 8) Very nice set up.