45mm aluminum extrusion modeled in Blender and drawn to real world dimensions. It comes in 3 different version. The Hi-poly version has 2120 polygons, the Me-poly version has 500 polygons and the Lo-poly version has 116 polylgons.These models are drawn 500 mm long, but they are easy to scale to increase the length as needed.
BLEND (Blender, filesize: 1.54 MB), OBJ (OBJ, filesize: 187 KB), FBX (Autodesk FBX, filesize: 115 KB), STL (Stereolithography, filesize: 270 KB)