Not enough disclosure is given in order to answer the question. Illegal HOW or WHY? Carry it WHERE? In the US - military personnel may not be armed unless they are in the official performance of their duty, and then only with the weapon(s) issued to them by their unit. Obviously - in combat zones and/or under combat conditions these rules may become a bit more fuzzy.
Local, State or Federal laws
Every state has laws and rules regarding the carrying of firearms. Check the laws for your state for any specific limitations.
That depends on your states laws. Some states allow it; some states require all handgun purchases to be made through an FFL dealer.
The laws vary quite a bit from state to state, but in general, it is not illegal- but it IS restricted. When I hunt with my grandson, who is 14, he is a minor carrying a firearm- but it is legal since he has his parent's permission to hunt with me. In some states, a minor performing work as a rancher may carry a handgun- on his parents property, or with their written permission. The common factor seems to be with parent's permission. However, as I said- laws vary state to state- and country to country. You would need to check YOUR laws.
No, it is not illegal to own a switch blade knife in the state of Kentucky. Kentucky has no laws prohibiting or limiting the ownership of knives but when it comes to carrying them on your person, it has to be an "ordinary pocket or hunting knife". And for the rest of the carrying laws, it is dependant on your local jurisdiction. Short answer; it is legal to own but not necisarily carry dependant on the laws of the local jurisdiction.
No. They're subject to the same laws as everyone else, and still wouldn't be permitted to carry on post.
Techincally yes, unless there are local state laws prohibiting it. It is not illegal under federal law for juveniles to possess handgun ammo under certain circumstances, you just have to be 21 to purchase it.
Which handgun law? Georgia, as well as every other state, has hundreds of handgun laws.
There is no exemption for military personel (other than they can carry a handgun on base if it is part of their job). Otherwise, military personel must follow the laws of whatever state they are in. To purchase a handgun from a licensed dealer, you must be at least 21, but some states allow people 18 or over to purchase handguns from individuals.
He bought it at a gun shop legally. Strange thing about Florida laws is he can buy a military type of weapon at 18, but not a handgun. Go figure.
It has something to do with carrying an illegal concealed firearm. Most concealed gun laws I've found have a -050 ending.
In many jurisdictions, a 'switch blade' (automatic knife) is illegal to sell, as well as to be in possession of. But in some jurisdictions there are no laws against selling them, so there is a chance you will find a pocket knife seller selling automatic knifes at a flea market. Be aware, though, that because of the different laws in different areas, you may be legal here but very illegal there. If you are caught in possession of an automatic knife, the penalties may be almost as severe as carrying a concealed handgun without a permit.