Anyone purchased an M1 or 1911 from CMP (or earlier from DCM) and successfully obtained serial number history on a particular firearm? If so, what's the process? Thanks.

I have not but I heard it's a FOIA request to the Dept of Army.

Don’t know if they still do it but for a fee they could research their records to see if it a given rifle had come through them. If they have processed it, I’m pretty sure they won’t tell you who bought it.

FOIA. Most don't find much. Some find an interesting history