Knife samurai 3D model is available on CGTrader for $12. Original author: olgko3d. Specs: 4632 polys, 4632 verts.
OBJ (OBJ, filesize: 286 KB), MAX (Autodesk 3ds Max, filesize: 12.1 MB), FBX (Autodesk FBX, filesize: 304 KB), TEXTURES (Textures, filesize: 11.8 MB)