In the US? Maybe, if the cause is good enough to call for a revolution of course but it'd have to be a damn good one. I mean, we can easily get guns and the supplies to make explosives and I mean hell, look at Egypt, all they had was rocks and stuff and they still managed to overthrow their government. But like most other first-world countries the people have become more lazy and will do what the government tells them to without question so I guess it wouldn't be as easy to rally the people for a revolution.
But if we did have one I can tell you one thing, it'd one hell of a fight.
I wouldn't use egypt as an example when thinking about the possibility for a revolution in America. Very different circumstances. Also, the egyptian military did not fire on the protestors. The protestors didn't even fight the military really, they mostly dealt with looters, and the interior ministry's security forces. Also, Mubarak technically resigned, and Egypt is currently controlled by the Egyptian military. Consider that Mubarak was a military man. THe Egyptian regime did not fall. Mubarak just left. Though the Egyptian regime may change to a democratic regime.
edit1: what kind of revolution can occur in America? America has a strong democratic regime with a constitution that's a step or two down from the bible in terms of how much people revere it. We have a very strong traditon of peaceful exchange of power and we have a very high standard of living compared to say, Tunisia. We're not in in the proper state for a revolt.