Check out Vintage old cannon gun on rust carriage 3D model on CGTrader for $7. High-quality mesh by saitan3d: 36566 polys, 36678 vertices. PBR, Textured, UV Mapped.
BLEND (Blender, filesize: 5.76 MB), OBJ (OBJ, filesize: 5.12 MB), FBX (Autodesk FBX, filesize: 2.07 MB), GLTF (glTF, filesize: 46.5 MB), STL (Stereolithography, filesize: 3.5 MB)