I'd post on a BC Rich Facebook group...those guys are the real experts, unless someone here is as well. I went crazy on a Custom Shop Mockingbird buying spree a couple of years ago, and they were super helpful in terms of identifying a fake that I almost bought. BC Rich guitars, from what I know, have an odd system of serial numbers, so its hard to always tell from that. I know there are USA bolt-on Warlocks, ST and Gunslinger models, but not sure of Mockingbirds.