Not just armed, but armed with the ability to disperse a violent crowd heading towards your house. Hence the requiremnt for a semi-automatice rifle with multiple standard-capacity (30 rd) mags.
(Or frighteningly know as: "assault weapons with high-capacity magazines" by the Libtards)
That means at least 5 kept loaded. And an Up Lula speed loader is a good idea, also.
And a shotgun. A couple of the feral animals turned to hamburger make a nice visual deterrent.