Sure there is, Get Age Verified, and scan the classified adverts, and shop away.
As for Canadian Law, or the psuedo law that various Government Agencies claim is the Law. Oh well, it sucks but we are all in the same boat.
If you are going import, only NON RESTRICTED parts.
6 Section, 2 Forward Observation Unit Airborne, Royal Artillery
Level 2 Certified BA Sniper
Sniper Instructor (Fieldcraft)