Weapon Country of origin Designer Cartridge Type Example platforms MK 108 Nazi Germany Rheinmetall-Borsig 30×90RB Machine cannon Messerschmitt Bf 109 G-6, Messerschmitt Bf 110 G-2, Focke-Wulf Fw 190 A-8/R2, Messerschmitt Me 262 Type 2 Japanese Empire Dai-Nippon Weapons Co., Ltd. 30×92mmRB Blowback autocannon Mitsubishi J2M (prototype) Ho-155 Japanese Empire Nagoya Arsenal 30×114mm Autocannon Nakajima Ki-84-I Hei, Kawasaki Ki-102c Hei Type 5 Japanese Empire Nihon Tokushuko 30×122mm Autocannon Yokosuka P1Y, Kyushu J7W, Mitsubishi J2M (planned) NR-30 Soviet Union A.E. Nudelman and A.A. Rikhter 30×155mmB Autocannon MiG-19, MiG-21, Sukhoi Su-7, Sukhoi Su-17 MK 101 Nazi Germany Rheinmetall-Borsig 30×184mmB Machine cannon Henschel Hs 129, Heinkel He 177A-1/U2 (experimental) MK 103 Nazi Germany Rheinmetall-Borsig Electrically-driven machine cannon Focke-Wulf Fw 190, Flakpanzer IV Kugelblitz