Makarov.
It IS a single stack 9mm pistol, and nowhere in the OP did it state 9x19, 9x21, 9x18, 9x17, etc. so it DOES count. I know that just saying "9mm" in American almost always refers to 9x19mm Parabellum, but IMHO it is the same as calling every .30 caliber rifle round out there "7.62" which is also done frequently. It needs to stop.
So, does OP mean 9x19mm Parabellum? How are we to tell? Therefore, Makarov.