Another simple red dot V1

A really simple red dot sight, mainly for aesthetic purpose. The inside diameter of the red dot is 25mm and the outside is 32 mm. It has a really short iron sight but I do not think you can really be precise with it. But do we really aim that precisely during airsoft games ?! We just look at the bbs flying around ! BOM :M4 Nuts x2M4x30 Socket Head x2 See my two other designs here :Another simple red dot V2Another simple red dot V3