It is a Springfield, serial no. 12123xx, barrel dated 10-20 with what looks like a Lyman 17A globe front sight and a Lyman 48 rear sight, I got a chance to check the barrel (bright and shiny, gauging about a .5 on the CMP muzzle gauge) and the headspace (would not close on a Clymer field gauge).
At some point it was put in a 03A3 scant stock. Wondering if this is possibly the original barrel.
Will provide a range report and better pictures as soon as I can get it to the range.