I have always wondered if someone could take one of those butt ugly "Fox" .410's and do some sculpting of the action and some refitting and come up with a lot more attractive gun. You would have to remove a lot of metal from the frame so you would really have to know what you were doing....
I don't think these guns are worth picking up a file for. You'd be much better off selecting a different brand, IMO. I was loaned one of these to compete in a fun shoot once. One barrel was no where close to hitting near the other. That was my one and only experience with these guns...and last.