You will know when you try to buy one.
Or If you already own one...
For a long gun you have to be 18. For a handgun you have to be 18.
You can buy books, send it back to the maker or find a gun smith.
No, it is not legal to buy a handgun at the age of 18. The minimum age to purchase a handgun in the United States is 21.
No, Missouri does not require handgun registration.
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.
Yes they can buy one.
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.