Check out SA-19 Grison Tunguska Low-poly 3D model on CGTrader for $12. High-quality Polygon mesh mesh by blackbirdvd: 563 polys, 675 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 434 KB), MA (Autodesk Maya, filesize: 722 KB), OTHER (Other, filesize: 1.15 MB), 3DS (3D Studio, filesize: 240 KB), MAX (Autodesk 3ds Max, filesize: 240 KB)