The invention relates to a slat arrangement for redirecting the trajectory of a bullet. The slat arrangement has a plurality of elongated steel slats, and each elongated steel slat has a longitudinal front edge and a longitudinal back edge stretching between a first end and a second end. The slat arrangement also has a support structure for supporting the plurality of steel slats. The steel slats are positioned in a louver-like fashion for changing the direction of a bullet following a trajectory along the normal of the slat arrangement. The support structure is connected to each steel slat at the back edge of the steel slat and between the first end and the second end of the steel slat.