Check out Realistic Ancient Cannon Low Poly 3D model on CGTrader for $3. High-quality mesh by 3mrys: 20085 polys, 10431 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 1.53 MB), BLEND (Blender, filesize: 2.56 MB), FBX (Autodesk FBX, filesize: 748 KB)