Check out Ballista wooden cannon Low-poly 3D model on CGTrader for $33. High-quality mesh by djeymax: 15607 polys, 15718 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 555 KB), MAX (Autodesk 3ds Max, filesize: 2.41 MB), TEXTURES (Textures, filesize: 28 MB), OTHER (Other, filesize: 28 MB), FBX (Autodesk FBX, filesize: 1.26 MB)