This specific 3D model, "Helmet 3d model military combat Military Low-poly 3D model 6", is an asset made available by "Unknown author".
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The license for this digital asset is "Unknown license".
BLEND (Blender, filesize: 1.56 MB), OBJ (OBJ, filesize: 594 KB), FBX (Autodesk FBX, filesize: 286 KB)