I choose the side of law.
If guns were illegal, I would abide by the law. Fortunately, the Second Amendment guarantees the individual right to keep and bear arms, subject to reasonable regulation.
The devil is in the details, of course, and there are laws being proposed (heck, who are we kidding, ON THE BOOKS...) that are, I believe, unconstitutional. However, the way to deal with this is through the system and the courts.