tokarev_svt-40
The Samozaryadnaya Vintovka Tokareva, Obrazets 1940 goda (Tokarev Self-loading Rifle, Model 1940, Russian: Самозарядная винтовка Токарева, образец 1940 года) is a Soviet semi-automatic battle rifle which saw widespread service during and after World War II.
See http://en.wikipedia.org/wiki/SVT-40