FN 303 (Subdivision ready 3D model) is available on CGTrader for $39. Original author: Polygate. Specs: 43570 polys, 44385 verts.
OBJ (OBJ, filesize: 1.32 MB), C4D (Cinema 4D, filesize: 1.25 MB), FBX (Autodesk FBX, filesize: 2.34 MB), BLEND (Blender, filesize: 1.54 MB), MAX (Autodesk 3ds Max, filesize: 8.22 MB), MA (Autodesk Maya, filesize: 1.85 MB), MEL (Maya Mel Script, filesize: 1.85 MB), 3DS (3D Studio, filesize: 1010 KB)