Vector Optics Enclosed Red Dot Sight Low Weaver Mount VOD/ACRO Footprint
(Aimpoint Compact Reflex Optic) So suits the SCRD-63 line and any otyher red dot with an ACRO base that you want to fit to a weaver/picatinny base. Vector Optics VOD Footprint That Is Used for SCRD-63 Line Enclosed Frenzy Red Dot Sight.