Sentinel military UAV Mctech 3D model is available on CGTrader for $5. Original author: faxrisi. Specs: 542432 polys, 542236 verts.
STL (Stereolithography, filesize: 51.7 MB), OBJ (OBJ, filesize: 74.2 MB), PNG (PNG, filesize: 385 KB), JPG (JPG, filesize: 385 KB), ABC (Alembic, filesize: 270 MB), BLEND (Blender, filesize: 10.4 MB), OTHER (Other, filesize: 346 MB), DAE (Collada, filesize: 3.24 MB), FBX (Autodesk FBX, filesize: 22.3 MB), GLTF (glTF, filesize: 1.33 MB), PLY (Ply, filesize: 19.9 MB)