That would be pretty funny. AR15s versus one helicopter gunship. It might provide a powerful lesson in the futility of some people's stockpile of weapons "to preserve liberty".
You can argue until you're blue in the face about the 2nd Amendment being essential for freedom, but it's actually the 1st Amendment and the right to file lawsuits against the government that do the heavy lifting. Guns just seem like a more manly option to the permanently juvenile.