Rebel against what? The federal government, with its tanks, and artillery, and jet fighters?
This idea of using guns to rebel against the US gov in this day and age is a fantasy. That was feasible in the 1700s, not now. Our hope is in our governors and state assemblies now.
There are many forms of rebellion. One only need Google or Bing modern revolutions since the start of the 20th Century to see that. Wiki has a decade-by-decade list; there are hundreds. Although some involved actual implements of war, many others went differently.
A modern rebellion could take the form of sparse armed resistance to egregious government intrusion coupled with other more wide-spread citizen acions - like not paying estimated taxes by those with their own businesses, etc. State and citizen disregard for Federal Laws, just like Obama does when it suits him.
All I’m saying is that there is a ‘tipping point’. It may very well be something like Obama’s plans to confiscate them that touches it off. It wouldn’t be a typical NORTH/SOUTH fight nor would it be a colonies/King thing, even though Obama thinks himself one. The result may not be much except to excite newer more effective ways of dealing with tyranny outside of the totally corrupt and fraudulent voting system we have today.