Factory barrel? As in a commercial, finished barrel? There is no legal requirement. Most barrel manufacturers mark their finished products. Most barrel makers stamp information on the face of the blank, but that doesn't survive fitting.
It is established practice and policy that installing a replacement barrel does not result in prohibited classification as long as overall length greater than 660mm is maintained.
Let's hope that the powers that be don't adopt your interpretation.
So I can install 16'' VZ58 barrel on my SKS and it's not prohibited.
So I can install 16'' VZ58 barrel on my SKS and it's not prohibited.
I had wondered the same thing myself. I spoke with a verifier at the firearms center who confirmed that a newly manufactured barrel is ok so long as it is not a semi-auto centerfire and your OAL is 26 inches or greater.
And guess who won't be testifying at your trial in your defense. Go ahead and see if you can get them to commit to their legal opinion in writing for you.
Cameron SS has carefully and eloquently explained his interpretation of the law.
The RCMP have been using their interpretation, which is different, thus the established practice of short replacement barrels being sold and installed.
Should a case ever get to court, established past practice would certainly be a factor.