18 years old, but not to play paintball, many fields have there own age limit, usually 13+.
The hopper will, but it won't be able to fire them.
The first paintball guns were used to mark cattle. They resembled a pistol.
Insurance requires fields to make the minimum age ten.
In New Zealand you have to be 18 to own a gun licence.
You must be 13 years old to own a gun. You must get a license first at above 13 years old.
To own a gun in North Dakota, you must be at least 21 years.
As old as your parents think is proper.