Check out MK3A2 Concussion grenade Low-poly 3D model on CGTrader for $5. High-quality mesh by david7s: 1120 polys, 582 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 18.9 MB), 3DS (3D Studio, filesize: 15.3 KB), FBX (Autodesk FBX, filesize: 44.2 KB), TEXTURES (Textures, filesize: 18.9 MB), OTHER (Other, filesize: 18.9 MB)