Wait a minute, this is not what I meant. I was talking in a scenario where it was not allowed to own a gun. Getting one by illegal means.
That's not a problem at all... Just one example, Nagant M1895 costs from $20 to $50 depending on the condition... It's a pretty old device but still very usable.
http://www.youtube.com/watch?v=Dh1mojMaEtM
http://www.youtube.com/watch?v=kIePW1wYZds