Check out spartan helmet Low-poly 3D model on CGTrader for $4. High-quality mesh by elauski. PBR.
STL (Stereolithography, filesize: 624 KB), OBJ (OBJ, filesize: 618 KB), ABC (Alembic, filesize: 34.6 KB), 3DS (3D Studio, filesize: 200 KB), BLEND (Blender, filesize: 455 KB), DAE (Collada, filesize: 27 KB), FBX (Autodesk FBX, filesize: 280 KB)