Model Variants (Including Prototypes)
2cm FlaK 30 - Base Series Designation
2cm FlaK 38 - Increased rate-of-fire to 220rpm; slightly lightened operational weight.
2cm GebFlaK 38 - Lighter model for airborne and mountain use; revised lighting gun mount.
2cm Flakvierling 38 - 4 x 20mm barrels
C/38 - Kriegsmarine Designation for the FlaK 30 system for use aboard naval warships.