Steel Gate Type 3 (Polygon mesh 3D model) is available on CGTrader for $10. Original author: faizal-3dx. Specs: 4051 polys, 4155 verts.
OBJ (OBJ, filesize: 91 KB), BLEND (Blender, filesize: 738 KB), 3DS (3D Studio, filesize: 129 KB), DAE (Collada, filesize: 497 KB), LWO (Lightwave, filesize: 35.2 KB)