M16 gun Low-poly 3D model is available on CGTrader for $55. Original author: squarebagel. Specs: 9732 polys, 5327 verts.
MA (Autodesk Maya, filesize: 1.94 MB), OBJ (OBJ, filesize: 1.02 MB), FBX (Autodesk FBX, filesize: 777 KB), TEXTURES (Textures, filesize: 15.7 MB)