Check out British Explosive Ordnance General Purpose 500lb Bomb Mk IV Low-poly 3D model on CGTrader for $7. High-quality mesh by aarondamschen: 1143 polys, 1460 vertices. Textured, UV Mapped.
BLEND (Blender, filesize: 1000 KB), OBJ (OBJ, filesize: 169 KB), FBX (Autodesk FBX, filesize: 90.1 KB), TEXTURES (Textures, filesize: 17.5 KB), STL (Stereolithography, filesize: 123 KB)