Tileable double sided traffic barrier guardrail V2 Low-poly 3D model is available on CGTrader for $19. Original author: dragosburian. Specs: 4870 polys, 9520 verts.
BLEND (Blender, filesize: 130 MB), OBJ (OBJ, filesize: 63.3 MB), FBX (Autodesk FBX, filesize: 63.7 MB), DAE (Collada, filesize: 63.4 MB), TEXTURES (Textures, filesize: 63.4 MB), PNG (PNG, filesize: 63.4 MB), STL (Stereolithography, filesize: 185 KB)