As it stands, the idea that we own arms to oppose our government in the last ditch, final confrontation is a non-starter.
If we truly owned arms to overthrow the government by force, we would need, in 2012, anti-tank weapons, artillery, radar, all the crew served weapons the U.S. military currently deploys, and access to the satellite network, both for accurate GPS and intelligence.
Without all of that, the idea that citizens could beat the United States reaction force, let alone the entire army, is a fantasy.
Even fighting the way to a negotiation table against the first responding battalion simply is not possible.
No, Jethro, your hunting rifle isn't going to do it. Your "guerilla" cell will be hunted down and slaughtered in an alley, or you will be arrested and do life without parole as a terrorist. You will go down in history as a common felon, not as a revolutionary.
The difference between a common, run-of-the-mill criminal with a violence jacket and a revolutionary is victory.
And that's out of reach, and has been for more than thirty years.
The only way to beat the U.S. military would be if entire American units deserted, complete with their officers and weapons.
And that's a job for a pen, not a rifle.