$149 2K11 Krug SA-4 Ganef Low-poly 3D model by vladimir-stepaniyuk. Available on CGTrader with 268801 polys and 142006 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 95 MB), BLEND (Blender, filesize: 11.8 MB), MA (Autodesk Maya, filesize: 11.9 MB), SPP (Substance Painter, filesize: 1.34 GB), FBX (Autodesk FBX, filesize: 12.7 MB), PNG (PNG, filesize: 280 MB), TBSCENE (Marmoset Toolbag, filesize: 9.71 MB)