The government bureaucracy has a lot of guns too
And a few of them are actually competent. Bypass them.
The number of guns won't matter, it falls on the motivation of the people and their willingness to use them. I don't think O has a lot of support from the Military, and getting orders to shoot their own family and neighbors who protest nullifying the U.S. Constitution is not going to go over well. Maybe that is why he wants to transform the military to a bunch of limp wristed GLBT degenerates.