If you do not have a concealed weapons permit the weapon has to be in plain sight. However (I live in kentucky which is very pro-gun, mind you) my brother has his permit and can carry concealed weapons on him as long as it's not to a school or government facility and there's NOTHING ANYONE CAN DO ABOUT IT :P. He has a .40 cal glock also, as well as a ar15, ak47, and some others. It's also perfectly legal to own a machinegun or fully automatic assault rifle/sub machine gun if it's pre-assault weapons ban treaty and you have your lisensce to use them ...which costs thousands of dollars.

Adios .

My brother assault rifles are semi-auto, however it's possible to "bump fire" them to make them fully auto, well, practically ...but it's just a waste of ammo anyways.