M110 SASS Low-poly 3D model is available on CGTrader for $15. Original author: zedman. Specs: 12886 polys, 7475 verts.
OBJ (OBJ, filesize: 227 KB), LWO (Lightwave, filesize: 402 KB), FBX (Autodesk FBX, filesize: 477 KB), TEXTURES (Textures, filesize: 21.9 MB), MAX (Autodesk 3ds Max, filesize: 479 KB), MA (Autodesk Maya, filesize: 622 KB)