NOTE: This is the mount only. No RMR or any other sight is included.This rock solid RMR mount brings ultimate functionality to the Tactical One-Piece Scope Mount. This item mounts via our patent pending dual taper mounting point on the top of the scope cap, delivering the most secure attachment possible. Useful for items ranging from levels and dope cards to red dots and weapons-mounted laser range finders. The durability and rigidity of this piece are the best in class, making your return to zero that much better..875a ^2 tall, 1.69a ^2 from the top of tube to RMR mount1.5oz, including all hardwareType III Hardcoat Black anodizedCaptive mounting screwsCNC Milled in America from American 7075 AluminumCompatible with all optics using RMR footprint:Trijicon RMRTrijicon RMR HDTrijicon RCRTrijicon SROHolosun HS407CHolosun HS507CHolosun HS508TNcStar VISM FlipDot ProRiton X3 Tactix PRDSwampox KingslayerSwampfox Liberty RMR 1A-22Swampfox Justice RMR 1A-27Vector Optics Frenzy 1x22x26