The WM-80 was a multiple rocket launcher used by the People's Liberation Army of China and sold to other states like Armenia. The MRL system was developed by Norinco on Chinese designed Type 83 273mm. It adopts a modular design, with two launcher boxes each containing four ready-to-launch rocket rounds on a TAS-5380 8x8 truck chassis. The system (WM-80) is now replaced by the A-100 multiple rocket launcher system.