SAM Pantsir S1 SA-22 3D model is available on CGTrader for $119. Original author: MrFrezzy. Specs: 495013 polys, 513133 verts.
OBJ (OBJ, filesize: 14.5 MB), MAX (Autodesk 3ds Max, filesize: 126 MB), 3DS (3D Studio, filesize: 5.17 MB), C4D (Cinema 4D, filesize: 10.4 MB), FBX (Autodesk FBX, filesize: 22.8 MB), MA (Autodesk Maya, filesize: 15 MB)