The new Dueck Defense Red Dot Adapter (RDA) is a compact mount that bolts directly to your Dueck Defense RTS rear sight. It allows you to attach your Micro Aimpoint or compatible red dot in such a way that it achieves a lower 1/3 co-witness with the RTS sights.
It should be noted that this is designed to be used with the generation 2 versions of the RTS sights. To determine if your RTS rear sight is compatible with the RDA, check to see if the holes on the leading face of your rear sight are threaded. If they are threaded it will accept the new RDA.