[2] During the Second Sino-Japanese War, Japanese forces captured a number of German-made SK C/30 anti-aircraft guns from the National Revolutionary Army of the Republic of China.

[4] Realizing the superiority of this design in terms of range and firepower over the domestic Type 88 75 mm AA gun, the Japanese Army Technical Bureau quickly reverse engineered it and placed it into production when the Type 88 anti-aircraft gun began to show increasing obsolescence against modern military aircraft.

The firing platform was supported by five legs, each of which (along with the central pedestal) had adjustable screwed foot for leveling.

It fired a 9 kilograms (20 lb) high explosive projectile to an effective altitude of 10,420 metres (34,190 ft).

[6] Projectiles The Type 99 88 mm AA gun was primarily deployed in defense of the Japanese home islands against Allied air raids and against the perceived threat of Allied invasion.