Arash (rocket)
The Arash (, From Iranian Arash) is a series of  unguided artillery rocket developed by Iran. It is a copy of BM-21 Grad. A guided version for the Iranian Defense Ministry was recently (July 2020) tested. Overview
There are four models for export. Each having different specifications:
Arash 1: Range : 21.5 km, Length : 2.815m, Velocity : 710 m/s
Arash 2: Range : 30 km, Length : 2.815m, Velocity : 1050 m/s
Arash 3: Range : 18 km, Length : 2.050m, Velocity : 720 m/s. Also known as Noor. Arash 4: Range : 40 km, Length : 2.890m, Warhead Types : HE fragmentation, ball steel, mine and fuel air. The export pages say that Arash 4 has a different launching system than other variants. All of them are fired from 40 tube launchers. Operators
 
  Hezbollah

References 

Self-propelled artillery of Iran