Check out The Karambit Knife Free low-poly 3D model on CGTrader for free. High-quality mesh by FasterThreeD: 886 polys, 956 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 132 Bytes), SPP (Substance Painter, filesize: 40.5 MB), FBX (Autodesk FBX, filesize: 167 KB), MA (Autodesk Maya, filesize: 134 KB)