Hey, that's got me thinking........ I was looking at the (2)CO part instead of the 2C-xxxx part!!!!! Maybe you ought to have put the serial number into the enforcer help section and see what Simon says. Yiou don't say what the 'issues' are. Incidentally, it has got an 00 bolt head. That's not a mistake. It was a relaxation in standards to allow certain barrels to be used during conversion plus a few other things......