FAST Helmet and AMP Headset Low-poly 3D model is available on CGTrader for $35. Original author: AvalsTreu. Specs: 50892 polys, 26947 verts.
BLEND (Blender, filesize: 179 MB), OBJ (OBJ, filesize: 9.36 MB), FBX (Autodesk FBX, filesize: 3.57 MB), MAX (Autodesk 3ds Max, filesize: 10.4 MB), GLTF (glTF, filesize: 169 MB), TEXTURES (Textures, filesize: 760 MB), PNG (PNG, filesize: 760 MB)