Free Old Bunker Radiation shielding Free low-poly 3D model by alexcgtrader. Available on CGTrader with 367 polys and 436 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 341 MB), OBJ (OBJ, filesize: 341 MB), FBX (Autodesk FBX, filesize: 341 MB), GLTF (glTF, filesize: 341 MB)