You can have one at any age. But in order to buy one, most states require you to be 18. A few states say age 16. And some states say age 21. So it depends on where you live. Check your local laws. And if you are not sure, have a parent come with you to be on the safe side. And if you are under the age of 18, you should always consult a parent first before buying a bb gun.
Your parents will decide.
21
18 to purchase
It all depends on the law where you live.
If its a BB Gun, Then Yes.
You need to take this question up with the child's parents.
18 years old
You must be 18 Years old to purchase one
No
Depends on your skills, size and parents.
It's up to your parents
You have to be 18 to purchase a BB gun but you can use one under adult supervision or guidance at any age as long as you act mature and understand the basic safety rules of handling a BB gun or Rifle