Two ways to go about it. First and foremost, you have to hold a valid North Carolina drivers license, and handguns cannot be sold to out of state residents, unless they're shipped to an FFL dealer in the buyer's home state. So, to buy a handgun you would..
check with a gun shop.
18 for rifle or shotgun, 21 for handgun.
If you're from SC, have an SC drivers licence, and maintain SC residency, yes. If you're not a resident of NC, then the only way you can do that is to have it shipped to an FFL dealer in NC.
yes
No, Missouri does not require handgun registration.
No, although handgun purchases do require a purchase permit.
JUSTICE BROWN
To legally purchase a handgun out of state, you must have an FFL dealer ship the handgun to an FFL dealer in your state.
Strictly speaking, no. You can only buy handgun within your state of residence. However, you can pay for a handgun in another state, have the gun shipped to a dealer in your state, then go to that dealer to pick it up.
No.
It depends on your needs. In general, you should buy a handgun that fits your hand properly. Beyond that, buy a gun that meets whatever other requirements you have.
In the US, to buy from a dealer, Federal law requires you must be 18 to buy a long gun (rifle or shotgun) and 21 to buy a handgun. In some states, you may buy a handgun at 18 from a private seller, but not a dealer.
Sporting goods stores, gun stores, or gun ranges normally have handgun ammo. As an aside, handgun ammo is in short supply at the current time.