$45 Heckler Koch G28 sniper rifle 3D model by cgd. Available on CGTrader with 86101 polys and 44426 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 6.54 MB), DXF (DXF, filesize: 3.08 MB), HRC (Autodesk Softimage, filesize: 3.46 MB), 3DS (3D Studio, filesize: 2.25 MB), DAE (Collada, filesize: 3.16 MB), FBX (Autodesk FBX, filesize: 3.58 MB), MAX (Autodesk 3ds Max, filesize: 2.5 MB)