Sell to parents, let him shoot it under the supervision of someone 21 or older when at the range. It does not seem to matter if it is on his own property. (I highly doubt any cop would go onto private land and try to arrest someone shooting a handgun in a safe manner, especially if he is 20 years old.) Make sure you know he is responsible enough for a handgun though.
Bottom line, If he is at the range or on his own land (the only places I can think of where he would be shooting) he should be fine. In my experience, nobody will hassle him for being 1 year too young if he is shooting responsibly.
For safety's sake though, he should probably be with a 21 year old or older while at the range.
Bottom line, If he is at the range or on his own land (the only places I can think of where he would be shooting) he should be fine. In my experience, nobody will hassle him for being 1 year too young if he is shooting responsibly.
For safety's sake though, he should probably be with a 21 year old or older while at the range.