$2.99 grenade launcher 3D model by danyo11g. Available on CGTrader with 34598 polys and 17673 vertices. Geometry: Polygon mesh. Check it out on CGHub.
STL (Stereolithography, filesize: 1.65 MB), DXF (DXF, filesize: 293 KB), IGE (IGES, filesize: 3.46 MB), PDF (PDF, filesize: 342 KB), SLDPRT (SolidWorks, filesize: 697 KB), OTHER (Other, filesize: 969 KB)