$8 Zweihander Two handed Sword Low-poly 3D model by alex3dartist1989. Available on CGTrader with 2214 polys and 4000 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 549 MB), FBX (Autodesk FBX, filesize: 549 MB), MA (Autodesk Maya, filesize: 549 MB), TBSCENE (Marmoset Toolbag, filesize: 549 MB)