Gunsホ103ホ103ホ103Caliber12.7 mmService193119321933193419351936193719381939194019411942194319441945Japan · China≈ Dec 1942 – Aug 1945Japan · Southeast Asia≈ Dec 1942 – Aug 1945Japan · Pacific≈ Dec 1942 – Aug 1945Thailand · Southeast Asia≈ Jul 1944 – Dec 1944Aircraft 8193119321933193419351936193719381939194019411942194319441945Ki-43-II≈ Dec 1942 – Aug 1945≈ Dec 1942 – Aug 1945≈ Dec 1942 – Aug 1945≈ Jul 1944 – Dec 1944Ki-61-I Hei≈ Dec 1943 – Jan 1945Ki-43-IbKi-43-IcKi-43-IIIaKi-61-I KoKi-61-I OtsuKi-61-I Tei