BM-21-1 'Grad' is Soviet/Russian MLRS entered into service in 1986 to replace BM-21 system. Main difference from older version is new Ural-4320 chassis, unlike previous Ural-375. The model created in high detailed standard. Also the scene contain two types of rockets - loaded in the launcher and already launched. This help understand how the rockets should look before and while launching. The model consist of 528K of polygons, however ~120K belong to the rockets (40 rounds). The model is real-world scaled, all parts are hierarchically linked and have correspondent names.