BB Machine Gun

[theairgunman]

Spare parts and a couple minutes time, and here is a BB machine gun:

Here is the first round of shots through it:

I had to shake it to keep it firing, so I added a plastic cone I constructed from an empty milk jug. I've got a video of that, but it is kinda dark
I'll have to see if I can enhance it, it is really impressive what a gun under $10 can do!

[Pellethuntr]

 Cool! but it doesn't look that power full?

[theairgunman]

That first shot was at 50 psi, the video I've been trying to upload with no success is shot at 100 psi.  It shreds cans up pretty good. I think I can get it to work even better, I'll probably have to do a complete rebuild though to work out all the bugs. I'd estimate it is shooting between 250 and 300 fps, about the same as a Daisy Red Ryder. Not real powerful, but has an amazing abrasive effect...

[theairgunman]

Here is a link to my 2nd test fire: http://www.youtube.com/watch?v=inlsyVUmn_Q

[Pellethuntr]

 Nice looks like it would be a nasty bird blaster! even out of the air. I'm sorry I doubted It's capability!

[theairgunman]

I think I could shred a bird in no time flat with this. I'd like to set up a bait station in my garage for some mice or rats. It still doesnt shoot as well as I would like, but some metal window screen should fix that...

[airgunman]

how to make that machine gun  tell me pls!!

[Forum Admin]

They are pretty easy to build, you can even make one out of a pill bottle and ball point pen. Do you have an air compressor? These things take a ton of air to work. Anyhow, attached to this post is a better BBMG that I built. The long skinny pipe on the right is the barrel made from 1/8" npt pipe. A couple of bushings convert it to 1/2" npt which is what the cloud chamber is made from. This is where your BB's go. I drilled and tapped a 1/4" npt hole on the bottom of that chamber for the air to go in. A threaded cap on the other end to keep the BB's in and you are done making it. I've got a post that shows what this BBMG ended up looking like here: http://www.airgununiverse.net/community/index.php/topic,20.0.html

[Lord Joshy]

How to you attach the barrel? it looks cool, I could just build one for fun out of spare parts in a few mins!