Iron dome 3D model is available on CGTrader for $10. Original author: oztz. Specs: 46500 polys, 23483 verts.
BLEND (Blender, filesize: 2.52 MB), OBJ (OBJ, filesize: 2.88 MB), FBX (Autodesk FBX, filesize: 1.11 MB), STL (Stereolithography, filesize: 2.22 MB)