Have you priced an assault weapon? Even if you were allowed to purchase weapons on-par with what the military uses, would you be able to? Granted "just having the right" makes us all warm and squishy inside, but it is strategically useless in "regime change" at home. If you want to overthrow the governemt, you're going to need the military on your side, because you have no hope of defeating them.
Talking about forcible overthrow? Been reading some Lenin, have we?
Vote for those who protect your rights. If no one represents your interests, shut up and run for office. That is your right.