Please specificy what you mean by "permission." If you are of legal age, you don't have to have anyone's permission.
I'm sure as long as you have your parents permission you should be able to purchase an airsoft gun or rifle. All airsoft rifles and guns require an orange tip on the barrel by law. So as long as you do not remove that you are okay.
Gun store.
Yes- with the permission of your parents.
With the permission of your parents- any age where you are old enough- and strong enough- to hold a gun. Without the permission of your parents, you will need to be 18.
As long as you meet the legal restrictions on gun ownership, if you purchase a gun you can pay for it with any method of payment.
No, you must be 18 to purchase a long gun and 21 to purchase a handgun.
You simply have to be 18 to purchase a long gun, or 21 to purchase a handgun.
It depends. You cannot legally purchase a gun for another person if the other person call legally own a gun. HOWEVER, the following is commonly misunderstood: you can legally purchase a gun for another person as long as the purchase is being made for a legitimate gift.
To purchase a gun, no. Anyone can purchase a gun as long as they meet the age requirement, aren't a felon, and don't have any disqualifying misdemeanors.
With the permission of your parents, any age.
No, it is not legal to purchase gun magazines without a license in California.
No, you do not need a license to purchase gun magazines in most states in the United States.