37-mm Type P793 twin anti-aircraft gun

The Chinese 37-mm Type P793 twin anti-aircraft gun system is a development of the Type 74, but has a higher rate of fire and a much more sophisticated fire-control system.

Two types of barrels are available (designated Type A and Type B). The Type A barrel is also used on the Type 74 and has a similar muzzle velocity, rate of fire and effective slant range. The longer Type B barrel has a higher rate of fire, muzzle velocity and slant range. This variant was later designated Type...