I'd have to check the current rules to be precisely accurate, but In general in Canada one used to need to have a Firearms Acquisition Certificate (FAC) to purchase or possess any firearm (for example, for hunting rifles, shotguns, 22 cal pest rifles, etc.). In order to get an FAC, one used to have to take/pass a course covering safety and awareness for firearms, training for use, safe storage and such, plus also a level of background/criminal records check. For a handgun and other firearms (for example, automatic/semi rifles, larger caliber weapons, revolvers, pistols, rifles with certain short barrels), it used to be that those were all Restricted Weapons in Canada, requiring higher levels of permits, checks, licensing, training, certification. Restricted Weapons in Canada used to basically be a pain in the butt. Average people didn't try to own them just for the fun of it. The requirements were such that one basically had to be pretty serious about it for storage, transportation, certified gun ranges use, etc. Generally, restricted weapons weren't things people in Canada would just take out and into the backyard for target practice.You have to also remember that in Canada, there really isn't a need/desire for firearms the same as there is in the US, for personal protection or otherwise just for enjoyment, or for having them just lying around the house or car. A loaded hunting rifle above the seat of a pickup truck in Canada, that could have a use for an on farm on ranch only vehicle on a really big farm/ranch (like thousands and thousands of acres). Such in an on road on highway vehicle, in Canada I am pretty sure that is illegal, as well as not really ever required/useful. In terms of an AR-15, if you mean a civilian equivalent of a Military M16 (or in Canada's case the C7/C8), those things would fall into a Restricted Weapons category. Folks don't need assault weapons in Canada for hunting.