Check out Maxim-Gun cannon on wheels Free low-poly 3D model on CGTrader for free. High-quality mesh by hoanguyen86: 1006 polys, 596 vertices. Textured.
OBJ (OBJ, filesize: 219 KB), FBX (Autodesk FBX, filesize: 219 KB), MA (Autodesk Maya, filesize: 219 KB), TEXTURES (Textures, filesize: 5.32 KB)