Just so I follow is there a law about being armed at a polling place in OK? Or is it if you vote at a school or federal building that is the issue
It's complicated, but don't do it. If you are caught, you'll be arrested and charged with violating 1277, and that will make your life hell. It sounds like common practice is for election boards to lease private facilities (even when they say it's donated) for $50, which means it is possible it becomes a prohibited place (depending on the legal definition of "conducting business with the public"). The other problem is that poll workers are technically appointed government officials for the day (they're sworn in by a judge the morning of the election as I understand), and it's likely a prosecutor would argue that a polling place is a "meeting" of the appointed poll workers. It's my opinion that both lines of logic stretch the legislative intent of the law pretty far, but that won't stop them from charging you.