I don't think she's looking for light reading, Hawkmoon. 'Tis probably a matter of professional interest.
All the more reason to avoid the printed gun magazines. They are a treasure trove of misinformation, disinformation, and just plain drivel. They appeal primarily to people who don't know any better. (As a man I once worked for liked to say, "Everything you read in [those magazines] is true unless you have first-hand knowledge of the facts.") Gun stuff is a matter of professional interest to me, too, since I am a professional writer and I have on occasion been paid for writing articles about
GUNZ!. Which is why I allowed all my subscriptions to lapse ... they were rotting my brain.
Sportsmans Guide Company sometimes has good deals on gear, but you have to be careful. Call em up and ask to be put on the mailing list for their shooters' catalog and their military surplus catalog.
Another vote for Brownells -- absolutely top shelf company. Also Natchez. CDNN is a liquidator ... they often have good deals on guns-n-gear, but it depends on what they can buy up in close-out lots.