it's a 7.5*55 Stgw57 Assault rifle, in Service until ~1990 in the swiss army. The sight was taken from a .22lr carabine, just mounted for dramatisation.
The stgw57 is a nice rifle. Ordinary soldiers used it for 300 meter range, where in other armies they cal themselfes snipers with 150 Meter ranges (eg using AR15)
http://world.guns.ru/assault/as45-e.htm
Since the government decided to get rid of the dozens of thousands of stgw57's, they kind of flooded the second hand market, therefor the prices dropped very low. Also, every retired soldier will get his rifle for free as a personal gift from the army when he finishes service. A lot of them have no use for a rifle at home, so they sell it. I have bought mine for 300 Swiss Francs, that's about 200 Euro. Also, the government decided not to sell the mayority of the rifles they still have (they don't want them to appear in a conflict etc, due to neutrality), instead they are goint to "disassemble" them.
Of course I couldn't play the scene in the car parking house with the rifle, so we used a greenscreen in this scene. BTW the background in the picture is only a test background.
