Guns › Oerlikon FFMG FFMG FFMG FFModification ofOerlikon FFCaliber20 mmService193119321933193419351936193719381939194019411942194319441945Germany · Eastern Front≈ Sep 1939 – Sep 1939Germany · Western Europe≈ Sep 1939 – Jun 1941Germany · Scandinavia≈ Apr 1940 – Jun 1940Yugoslavia · Balkans6 Apr 1941 – 17 Apr 1941Romania · Eastern Front≈ Jun 1941 – Mar 1943Aircraft 5193119321933193419351936193719381939194019411942194319441945Bf 109 E-31,276≈ Sep 1939 – Sep 1939≈ Sep 1939 – Jun 1941≈ Apr 1940 – Jun 19406 Apr 1941 – 17 Apr 1941≈ Jun 1941 – Mar 1943Bf 110 B45Bf 110 C-1Bf 110 C-2Do 17 Z-10 Kauz II