I have an AR-15 and a beretta .40 with plenty of ammo ready to roll if the worst possible scenerio happens in the US. People havent seen an insurgency until they attack the US homeland. :)
I just bought an Ak clone, attached. Cost a third as much as an Armalite, larger caliber cartridge, and good review by NRA for reliability, 3" groups with scope.
http://tombstonearms.com/WASR-10.html
Remember the LA riots? Remember how they ended? After the rioters destroyed their own neighborhoods, they started to move into the Korean neighborhoods. The Koreans were having none of this. They positioned snipers on the roofs of their homes and businesses in order to protect them. The rioters decided to go home.