If he hasn't said anything completely specific, you are better off with a gift certificate. hunter's can be, and usually are very specific in exactly what they want, and often very brand loyal too. I'd get him something small, like the thermocell or maybe a box of ammunition (look at what kind he has and get exactly that) and give him the rest as a gift certificate. An addedtouch he may like is for you to ask to go with him while he picks out what he wants so it is a little more personal.