Check the listing for details. Williams Gun Sight Low Reflex Sight (LRS): Aluminum Reflex Sight Design Compl.... Condition: New. Listed at 292.39 USD. Our new LRS features Reverse Reflex Sight technology, when used with a picatinny rail, creates a reticle position that sits 30% lower compared to standard reflex sights. The lower reticle position and profile is designed specifically for shоtguns and riflеs.