Check out WW2 German Helmet Stahlhelm - Military Helmet Low-poly 3D model on CGTrader for $4.99. High-quality mesh by Ertan-Zorlu: 1552 polys, 1510 vertices. PBR, Textured, UV Mapped.
STL (Stereolithography, filesize: 62.7 KB), OBJ (OBJ, filesize: 73.1 KB), DAE (Collada, filesize: 103 KB), FBX (Autodesk FBX, filesize: 80.3 KB), BLEND (Blender, filesize: 172 KB), MAX (Autodesk 3ds Max, filesize: 881 KB), MA (Autodesk Maya, filesize: 94.9 KB), ABC (Alembic, filesize: 70.7 KB)