Fail. They sell pinned 5/30 round mags to Canada all the time. They have gimped mags as per hunting regulations in the U.S., so that works for us.
But.... who cares. Support Marstar. If you can only buy one mag, pay the $40.00. If you can buy a bunch, pay the $25.00 each. If you want local or Canadian dealers, pay for it. No one is here to do you a favour or be nice, they are there to make money. I would rather my money going to a Canadian, and trickling down to his employees and their local economies then all the money going to the US to do the same for an American. United we stand or divided we fall, and there has been a lot of FALL of late in the Canadian Firearms Community, its time to re-unite. Support your local Candidate, try the veal.