$4 Mk2 Grenade Low-poly 3D model by AH-CGI. Available on CGTrader with 346484 polys and 174163 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 6.53 MB), FBX (Autodesk FBX, filesize: 8.17 MB), 3DS (3D Studio, filesize: 4.66 MB), BLEND (Blender, filesize: 30.3 MB), GLTF (glTF, filesize: 4.55 MB), PLY (Ply, filesize: 3.91 MB)