I too believe this is an old bow, but I don't think it is a regular old bow with an IBD on it. I have to think that it is either an event bow or something of the sort, the 100% lower req and the self repair 10, and other stats, just are too out there for that period, as you stated.... I've looked around for information, maybe I'm missing it.... Maybe we just need ole handy dandy Manticore to come to our rescue and tell us what we don't know.....