The rifle used is named as a Sabatti (an Italian company) by Detlev. It does not resemble any particular Sabatti model closely but looks a little like a Sabatti Rover Tactical model. Detlev did say he had modified it, though.
The actor playing the marksman, the sniper in this film, Kim Bodnia, also played a sniper, but a hired killer in the series Hostages, season two.
Sandra Yi Sencindiver's debut.