Responsible gun owners have a duty to keep guns out of the hands of criminals. If you are forced to surrender your guns against your will make sure they are useless. Just in case they get lost on their way to be destroyed. For safety.
A dab of JB weld in the chamber should do the trick. Once the bolt closes, it ain't ever shooting again.
EDIT: To all the folks saying "Muh 1776!"... Only a small percentage of Americans went to war with the redcoats. A lot of people comply, for many reasons. This is for them, retailers especially, they can at least guarantee these guns don't go to Ukraine, Syria, ISIS, Gangbangers, etc.
Maybe so. But Canada's problem is that they don't have a Constitution in the American sense. They think they have one, but it's not the same thing at all.
Their version has the word "morning" in front of "constitution" and the letters "al" at the end of "constitution".
Fact
We do have a constitution, it just doesn't have 1A or 2A protections. It needs an update.