Interesting thread! I just read an article in the past several days from one of our gun magazines (I'll have to dig for it) about a guy sawing down a 12 gauge to make a pistol. It was legal here in US because he spent the 3 months and $200 to get a permit to do so. He started with one of the Bakhail side-by-side shotguns and since he is an orthopedic surgeon who appreciates the risks to joints and such ONLY shoots the 1-1/2" slugs offered by Aguilla(??). I'll see if the article describes the slug weight and velocity. I was less than enthusiastic to see that this weapon is basically considered to be a class III weapon, which puts it in the same camp with fully-automatic weapons. That means I wouldn't consider bothering with it... putting my fingerprints on file and such. Foolish to restrict them, considering they would be far too unweildy for a criminal to use in virtually any situation and likely to cause injury to a user unless he was quite adept.