The ZU-23-2 AA Ant-aircraft gun, also known as ZU-23, is a Soviet towed 23 mm anti-aircraft twin autocannon. ZU-23-2 was developed in the late 1950s. It was designed to engage low-flying targets at a range of 2.5 km as well as armoured vehicles...
The serial production of AS-2 (airfield starter) on GAZ-AAA chassis had been started from 1936. The vehicles had been used as starter of engines of planes in the winter time. These vehicles were widely used during World War II.