3.7cm PaK 36

The 37mm PaK 36 made up Germany's first modern, mass-produced anti-tank gun. It is a quick-firing piece with similar capabilities to its contemporaries. However, the Germans in particular made much use of their 37mm cannons (in the form of the 3.7cm KwK 36) as the main cannon of many light tank designs. Due to improvements in armour design, by mid-war the 3.7cm weapon was entirely obsolete against T-34s and other similar Soviet designs. Thousands were sold off post-war.