The laws have likely changed, but, there was a time when you (Canadien guy) applied for a FAC (firearm acquisition certificate) for a particular gun, and then imported it. The FAC was about like an American having an FFL, but, without dealer type privilege, or, specific to the gun on the certificate.
You might want to contact James (Canvasback) here, he likely keeps his pencil sharp on those laws.

Best,
Ted