Check out M9 Bayonet Knife PBR Game Ready Low-poly 3D model on CGTrader for $13. High-quality mesh by AtomStudios: 3716 polys, 1889 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 781 KB), MAX (Autodesk 3ds Max, filesize: 62.7 MB), TEXTURES (Textures, filesize: 8.54 MB), FBX (Autodesk FBX, filesize: 155 KB)