Combat Knife CK01 Low-poly 3D model is available on CGTrader for $8. Original author: drvisual3d. Specs: 891 verts.
BLEND (Blender, filesize: 826 KB), OBJ (OBJ, filesize: 28.9 KB), FBX (Autodesk FBX, filesize: 50.7 KB), DAE (Collada, filesize: 63.5 KB)