"Do not ever give up your guns", har-har. In the guerilla stage of the Second Chechen War one of the ways to deal with the insurgents who would barricade in a building was to drive a T-72 to it and fire a couple of HE shells at it. The house would fold in like, well, a house of cards; I believe there even used to be recorded footage on YT. I imagine a single fragmentation shell would be enough for an average American house. My point is, in the modern days having small firearms is not really going to help you against a government who would be willing to use its military on its own territory; you'd need automatic weapons and artillery at the very least, and a lot of foreign funding and training as well. Even then...