Army Sgt. Denied Gun rights

Why? He was convicted of a minor pot charge in 1971! He didn’t think much about it, and after serving his country with distinction for 20 years, he was turned away when he tried to buy a .22 cal. Rifle because of it. He found out, many years later that this minor offense (now legal in many states) BARRED him from owning a gun FOREVER. Another “back door: method of denying responsible people their gun rights. I’m sure the “statute of limitations” would deny the government the prosecution of this man for this “crime” today, but it appears there’s no statute of limitations on denying an essentially good and responsible citizen who served his country with distinction for 20 years the right to self-defense,” hunting, or any other reason for which he wanted this gun. (The Blaze)