The MAK and PP/PPK are a blowback design.
9mm is too powerful for a blowback, you would need to have an extremely heavy spring or a massive bolt like in a Sten, which is also blowback. So 9mm pistols tend to be a little bit bigger than a MAK or PP because of some type of retarding action instead of just a spring.
Smallest 9mm's that are available in Canada is probably a Glock 26, (about 80 in Canada as prohibs), S&W 3913 Ladysmith, or a P7, and probably a few others.