I believe I'm seeing an upswing in this type of offering.
I've been on the gun boards since I-don't-know-when and it looks like I'm seeing more and more comments in the last two or so years regarding merchants from all over making this kind of deal. The most recent that I've seen was about some retailer in Idaho doing it.
Of course, it drives the anti-gunners bonkers, which is a good thing, but it also indicates that firearms ownership is becoming "re-normalized" over the past five-ish years, in my informal observation.
I suspect this "re-normalization" is due in large part to the shall-issue concealed-carry movement in most of the states. Kind of a "gateway" to more firearms in the hands of the humble peons.
I remember The Bank Of Boulder, back in the sixties, offering a Weatherby rifle for the purchase of large Certificates of Deposit for um, say, five years, as an up-front interest payment. I am told that this was what "made" the bank in its infancy. (I used to bank there, but I myself never took advantage of the offer. They changed their name since then.)
Terry, 230RN
REF:
Search term: "bank of boulder + weatherby"