You can: (a) loan him a rifle for temporary sporting purposes (like going hunting or plinking); (b) give him a gift certificate or cash to go buy the rifle for himself (but not to buy it for you (see straw purchases)). But no, you cannot directly give him the rifle without going through an FFL.
A gunfight is not the time to learn new skills.
If you ever have a real need for more than a couple of magazines, your problem is not a shortage of magazines. It's a shortage of people on your side of the argument. -- Art Eatman