Check out Knight Helmet Low-poly 3D model on CGTrader for $9. High-quality Polygon mesh mesh by HiepVu: 5560 polys, 3128 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 1010 KB), BLEND (Blender, filesize: 10.9 MB), MA (Autodesk Maya, filesize: 371 KB), FBX (Autodesk FBX, filesize: 200 KB), SPP (Substance Painter, filesize: 141 MB)