As a minor you are allowed to have and legally discharge firearms if you have your parent or guardian’s permission.

If someone sells or gives you a firearm or ammunition without your parent’s permission when you are a minor, they are guilty of a class 6 felony. This includes toy pistols by which dangerous an explosive substances may be discharged (ARS 13-3109).

Any time a gun is used in connection with an offense (such as an assault, or a gun is shoplifted) the penalty for those illegal actions is increased.

what do they consideer a minor? im going crazy hear, is it someone than 18 or 21.