$6 Grenade MK 2 Low-poly 3D model by amazingzonder. Available on CGTrader with 2210 polys and 2326 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 72.8 KB), OBJ (OBJ, filesize: 85.8 KB), BLEND (Blender, filesize: 227 KB), FBX (Autodesk FBX, filesize: 138 KB), GLTF (glTF, filesize: 69.7 MB)