The LEAP 05 mount by Scalarworks is the lightest, strongest and most compact quick-detach mount for the Trijicon MRO optic. The ClickDrive(TM) system by Scalarworks ensures a hold and return to zero in any condition and the thumbscrew allows for quickly and easily detach and reattach the optic. Reflex Optic Sight Compatibility Trijicon: MRO, MRO HD, MRO Patrol Specifications Materials: 7075-T6 Aluminum / 4140H Steel Finishes: Type III Anodizing / Flash Nitride Center height over rail: 1.57" Co-Witness: Lower-Third Weight: 1.45oz Origin: USA Rails: MIL-STD-1913 Picatinny Includes: Scalarworks(R) Leap(TM) (SW0510) mount, #4-48x0.22" Nylok(R) treated fasteners, T10 Torx driver bit driver and instruction manual. The optics bundle includes all of this plus the Trijicon MRO optic MRO-C-2200003