$12 30 Low poly medieval fantasy helmets base mesh shapes IMM brush 3D model by breakermaximus. Available on CGTrader with 103927 polys. Check it out on CGHub.
ZTL (Zbrush, filesize: 1.78 MB), OBJ (OBJ, filesize: 2.14 MB), FBX (Autodesk FBX, filesize: 4.45 MB)