Quoted:
one more question ht. is there any stamped markings on the barrel that signify larue?
Not that I am aware of... though I am new to LaRue rifle's myself. I just received mine about a week ago... there are no visible identifiable markings on the barrel of my gun, I have not attempted to remove the handguard assembly so there may be markings I am unable to see? I do know from research that the OBR 7.62 barrels are supplied by Lother-Walther...
As far as an accurate "born-on" date, I would imagine your bro's gun would not be more than a few days older than the date that was hand scribed on the rifles included test target (which looks promissing by the way!)
ETA: I guess I should have looked the rifle over under better lighting, sorry for the misguided info on the barrel stamp
Not only is it there, but they now have LaRue engraved across the state outline as well.