From Wickapedia: "The PM (Pistolet Makarova, Russian: Пистолет Макарова) is a semi-automatic pistol design. Under the project leadership of Nikolay Fyodorovich Makarov, it became the Soviet Union's standard military side arm from 1951-1991"surprise_i'm_armed wrote:http://www.cfnews13.com/article/news/20 ... o-break-in
I assume that the pistol he used was a Makarov, chambered in 9MM x 18 MM, but there's no further detail to verify this.
SIA
Considering the unerring accuracy of all media outlets concerning firearms it well may have been a Mack. If it truly was a WWII Russian gun then it couldnt be a Mack chances are it was a Tokarev or maybe even a Nagant revolver.