He can buy the handgun at his destination and have it shipped to his local FFL. His local FFL will do the background check or what ever is required by his state of residence. How do you think online purchases work?
"I do not aim with my hand; I aim with my eye. He who aims with his hand has forgotten the face of his father.
I do not shoot with my hand; I shoot with my mind. He who shoots with his hand has forgotten the face of his father.
I do not kill with my gun; I kill with my heart. He who kills with his gun has forgotten the face of his father."
Adopt a pet!! http://www.aspca.org/
Some of the finest pleasure horses come from here: http://www.canterusa.org/