$39 PBR Winchester Model 1887 Low-poly 3D model by steffe-engdahl. Available on CGTrader with 7417 polys and 3890 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 3.53 MB), MA (Autodesk Maya, filesize: 1.85 MB), FBX (Autodesk FBX, filesize: 2.25 MB)