The Me 410 A1/U4 was fitted with a 50mm BK5 cannon in the undernose weapons bay, while the A2 model replaced the 7.9 mm machine guns with two 30mm cannon.
The Me 410 A1/U4 was specially developed and fitted with a 50mm BK5 cannon in the undernose weapons bay, supplementing the normal forward firing weapons. The A2 model replaced the 7.9 mm machine guns with two 30mm cannon.