17 Pounder (Polygon mesh 3D model) is available on CGTrader for $50. Original author: Plutonius3d. Specs: 5276 polys, 3265 verts.
STL (Stereolithography, filesize: 74.5 KB), OBJ (OBJ, filesize: 134 KB), 3DS (3D Studio, filesize: 71.5 KB), MAX (Autodesk 3ds Max, filesize: 117 KB)