Check out Genoese Crossbow Free low-poly 3D model on CGTrader for free. High-quality mesh by Terrabil: 41605 polys, 41854 vertices. PBR, Textured, UV Mapped.
STL (Stereolithography, filesize: 4 MB), OBJ (OBJ, filesize: 5.71 MB), FBX (Autodesk FBX, filesize: 5.53 MB), DAE (Collada, filesize: 8.3 MB)