The NcStar ADO Scope features an integrated Red Dot Reflex Optic on top of the scope body. The Red Dot Reflex lens folds down when not in use and with a push of a button the Reflex Lens flips up to the deployed position and automatically turns the Red Dot reticle On. When the Reflex Lens is folded down to the stored position, the Red Dot automatically turns Off.