The 3.7 cm Flak 43 was an anti-aircraft gun used by Germany during World War II.  It was a simplified version of the previous Flak 18/36/37. Although primarily mounted as a single gun unit and of vehicles, a dual gun mount was produced as both field mounts and fixed mounts on flak towers.

This model is offered in the Warlord Bolt Action  as a heavy AA gun, a fixed weapon, with a crew of 4. The cost is 70 points as a regular, the gun shield is an extra 5 points. This model represents the gun equipped with the gun shield.