Would someone who really gets all the references etc post a cliff notes version?
It seems to me that they won't have serial numbers but they will certainly track the number of non-restricted firearms purchased and sold. When the RCMP come to your door and you have less than their records show your going to have some explaining to do.
Why does Quebec get access to every provinces data from the long gun registry? I can see that just opening the door for a warrant from any where in Canada to get the information.