K31 full serial number on barrel

[kawicrash]

My K31 has the full rifle serial number on the barrel. I understand normally only the last 3 digits are stamped on the barrel.
Does this mean it has been re-barreled in the past? There is something in the K31 useful information sticky, but the link doesn't work.
Thanks.

 

[diopter]

My K31 has the full rifle serial number on the barrel. I understand normally only the last 3 digits are stamped on the barrel.
Does this mean it has been re-barreled in the past? There is something in the K31 useful information sticky, but the link doesn't work.
Thanks.

http://theswissriflesdotcommessageb...digits-of-receiver-ser-on-barrel#.VtxXDZwrLnE

Serial #'s can be found here:
http://theswissriflesdotcommessageb...-Please-READ-THIS-before-posting#.VtxXlpwrLnE