$14 Arbiter 450 Bushmaster - Sawed off AR Low-poly 3D model by Akinaro. Available on CGTrader with 14003 polys and 7334 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 78.8 MB), DAE (Collada, filesize: 79.9 MB), FBX (Autodesk FBX, filesize: 78.4 MB), TEXTURES (Textures, filesize: 77.9 MB), JPG (JPG, filesize: 77.9 MB), PNG (PNG, filesize: 77.9 MB)