‘Sawn-off’ PTRS-41 antitank rifle
Designed by Sergei Gavrilovich Simonov c.1941 and manufactured until the development of the RPG series of personal antitank weapons. The SKS is here for scale.
14,5x114mm 5-round internal magazine, reloaded from the bottom with an en-bloc clip, gas operated semi-automatic.
The funny thing about the picture is that the SKS’sdesign is a scaled down PTRS. Behold, the smart way and the awesome way to do one thing.