$30 24lb Bromfield Cannon Low-poly 3D model by pbr3d. Available on CGTrader with 12757 polys and 13081 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 54.3 MB), OBJ (OBJ, filesize: 1.68 MB), FBX (Autodesk FBX, filesize: 785 KB), GLTF (glTF, filesize: 56.6 MB), TEXTURES (Textures, filesize: 50.4 MB), DAE (Collada, filesize: 4.14 MB)