Check out M-26 Frag Grenade Low-poly 3D model on CGTrader for $10. High-quality mesh by mkluxton: 2999 polys, 2411 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 529 KB), FBX (Autodesk FBX, filesize: 370 KB), MAX (Autodesk 3ds Max, filesize: 1.24 MB), TEXTURES (Textures, filesize: 64.1 MB)