As reported old.tehrantimes.com, Iran since 2010 is mass production 8-barrel anti-aircraft air defense system Mesbah-1 23 mm (artillery unit — ZU-23-4 Russian development).
Artillery system has a rate of 4,000 rounds / min. During the presentation of Iranian Defense Minister Ahmad Vahidi (Ahmad Vahidi) told reporters that this weapon has unique features that distinguish it from a profit of such air defense systems. «Mesbah-1» can detect and destroy drones, the minister said. According to en.wikipedia.org, anti-aircraft gun capable of hitting targets at a distance of 4 km and a height of up to 2.5 km. The system is armed with radar and infrared sensor, built-in anti-aircraft fire control system of the complex.