Might want to check opencarry.org in the forums. They have quite a few stories about Vegas. From my reading, OC is legal, the strip properties will ask you to leave if they observe your firearm, and Metro PD may hassle you walking down the street. If your permit is recognized by NV, I would suggest carrying concealed, not consuming alcohol (although you just have to remain under the legal limit by law) and not drawing attention to yourself.
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