Gen 3/3+ requires expensive paperwork to export, as tom said, though the process is fairly easy.
Also, contrary to common thought, there are companies in Canada that carry and sell Gen 3+ units to both the civilian and MIL/LEO market in Canada, ITT PINNACLE tubes and Auto-Gated, not the basic models, though they do carry those as well if you're on a lower budget.
Just look around and you should be able to find the retailers on your own.
Certified Level 3.1415926 Sniper Certified
Certified Level 3.1415926 Orbital Weapons platform Certified
Originally Posted by ThunderCactus
Like seriously dude. The incredible lack of common sense in the question could be scientifically investigated for evidence of a black hole.