Russian BM-21 Grad
Modelled at 1/72 scale but easily scaleable to 1/100 or 1/56
This download is a highly detailed, three piece print. There are two launchers as well as the chassis.
Files are pre supported, with the bare STLs and LYS files for support editing if required. Be careful, some of the small details are fragile.
Physical prints are available at badger3d.co.uk