All the features of Truglo's original Dual Color dot sights for those who dont want a tube. A wide sight window with a thin frame makes the optic housing nearly disappear from view while your dot remains on target. The Dual Color Open Dot Sight is available with a standard dot reticle or a multi-reticle selector. Features: Two choices of reticle color for contrast against any target / background (red or green) Lightweight / compact design Unlimited eye relief Wide field of view 34mm x 24mm window for ultra-fast target acquisition Parallax free at 30 yards Integrated Weaver-style mounting system Black anodized finish Water and shock resistant