Well if a tool is used for killing or in a manner as to cause harm to another, it's always a tool of [i]de[/i]struction, I would think. I have never seen a gun that's made for anything but firing a projectile, same goes for a screwdriver, they're made for a purpose in mind. Ultimately I think it comes down to the reason why guns were invented, and that's to kill people. Guns do kill people. That's why they are still around. It's why bows got phased out of the military. Because guns kill people a lot better than anything else.