Just ran across a very interesting "light tent" for photographing small objects, and it looks like it would be ideal for handguns. I have built my own lightbox, but this product looks superior to what I have. If you like photographing guns, check this out:
http://www.ezcube.com/
I'd like to see a user's report on it, and if I am the first to get one I'll post my experience with it.