Free DIY collimator sight Free low-poly 3D model by rickardosanchez. Available on CGTrader with 2233 polys and 2388 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 191 KB), OBJ (OBJ, filesize: 95 KB), FBX (Autodesk FBX, filesize: 138 KB), TEXTURES (Textures, filesize: 22 MB)