DAVE, YOU'LL most likely have no problem here in Vegas unless you're stopped for drunk driving or two days late with a library book.
BUT you should realize that it's legal to carry a registered weapon, so don't pick a fight with a little guy wearing a funny hat made in Brooklyn.
Be polite in the casinos and clubs and you'll get a free pass to have a hell of a great time.
BUT if you do f.... up, here's some help in the jpg format