The Panzerjäger Tiger Ausf. B Jagdtiger (Sd. Kfz. 186) was a German tank destroyer (self-propelled anti tank gun) Jagdpanzer of World War II. It saw service from late 1944 to the end of the war on both the Western Front and Eastern Front. The Jagdtiger was the heaviest armored fighting vehicle to see service during World War II.