http://www.theblaze.com/stories/2013/02 ... -decision/Fortunately for those worrying about their neighbors acquiring weapons grade helicopters, even the most stringent supporters of gun rights admit that the law allows for limits on what sort of weapons are protected, or on how those weapons might be obtained. For his part, Scalia would limit the amendment solely to weapons that can be carried by an individual human being, knocking such armaments as tanks and missiles out of contention, and admitted in the majority decision in Heller that regulations such as background checks and concealed carry permits almost certainly pass constitutional muster.
If you can convince the Gubment you need to carry a gun, you can then carry it in all states and protect your domicile (RV) while you drive around. No guarantee on concealed weapons. In fact the 2nd amendment does not imply concealed weapons or castle rule. You keep the arms at home and round up a militia, fine. At least three required for a militia.