Have pity on him
! I sent him a Surefire wrench, which is just a flat piece of steel basically. It fits all shotgun forends that I'm aware of, though. He'll be most underwhelmed at the level of technology, and feel like a doofus for asking for something so simple, once he see's what's required
.
The simplest things are the hardest to explain. In high school we had to write instructions on how to make a peanut butter and jelly sandwich, for a person who's never made a sandwich before.
How would you explain the color blue to a blind person, who's never seen?
Cheers,
Clay