Semi auto, not revolver.

Check this out:

Llama makes a .45 sub compact. Its a little wide asto accomodate the rounds but it is still a tiny gun and its .45 acp. Not to mention you could probably get it new for $250-$350. Its certainly no show piece but its a gun.

I am only advocating the .45 for this simple reason. I am 250 lbs and I think, if im in a situation where somebody is shooting a gun at me, I probably want to reach them for one reason or another. Being 250 lbs, I believe I might be able to shake off a couple of 9mm rounds and still do some damage (not saying I wouldnt pay the consequences later) but with a .45, I do believe I would think twice before getting back up. I dont know maybe thats just the Marine in me. Hope it helps.