Sjögren Inertial

The Sjögren Inertia Shotgun was a 12 gauge semi-automatic shotgun designed by Swedish inventor Carl Axel Theodor Sjögren produced from 1908 to 1909. It used an inertia system later revived by the Italian firm Benelli and today widely used in shotguns.The shotgun had limited service in World War I by both the Allies and the Central Powers.

Battlefield 1
The Sjögren Inertial is a shotgun introduced in the Battlefield 1: They Shall Not Pass expansion for the Assault class.