I was looking forward to finding any back-story related to my Reising M50 (#7708), however my FOIA request was denied (6 months after the request). The reason, according to the ATF: I requested "tax return information that is not related to you." Seems an odd response, since many others have had success hunting down the past life of their machine guns, tax information be darned (usually redacted). I'm no expert on procedural requirements, and far from a lawyer, but if anyone has received this response, please let me know if it's worth an appeal.