Has anyone used any of the Canadian military mags? The 20 round Thermold jobs? Centerfire Systems has them catalogued at $897.99 for a case of 225. Thinking about picking up a case if they have been proved out. No, I am not willing to accept the Canadian military endorsement. I know the troops up there call them Thermelts because the feed lips can melt if you overheat them. But, I was thinking they may make good supplemental mags to pass out in a SHTF SNAFU. When retaining mags isn't of the utmost criteria and it would be feasible to simply drop them and bug out when emptied.