Are there any "readily available" pistols in Canada that would use those mags? Don't hold your breath. Technically, if someone was to import a pistol version of this rifle, and it used a slightly different magazine (generally different body length) and it held 10 rounds, that would work. Since it doesn't look like we're even getting a restricted version of this rifle, I'm guessing getting a pistol version isn't happening either. The maker would have to design and build the pistol, and then it's a crap shoot with the lab to see if they'd allow the mag. Too many "maybes". Most of the MPX's in the country are technically the "pistol" version with stocks attached after manufacture, but the lab says they get 5 rounders, so they're redefining things on the fly again.