Unity Tactical MRDS Mount 2.26" Height Cross Bolt Mount RMR Footprint Anodized Finish Black. 26 to optical centerline. This includes micro red dot sights with any of the following footprints: RMR DeltaPoint Pro ACRO 509T RMSc and Holosun K. It comes standard with a two cross bolt rail clamp but is compatible with the FAST QD (Quick Detach) Lever. With exception to the Leupold DeltaPoint Pro it is also compatible for use with the line of FAST FTC magnifier mounts. FAST is a series of optic mounting solutions that provides end users with a quicker sight picture than standard height mounts. FAST mounts create a 2.26 optical centerline from the rail which allows for more rapid visual processing of the battlefield by ensuring an ergonomically correct heads-up posture. Further they provide faster and easier dot/reticle acquisition while wearing night vision goggles protective masks plate carriers and other gear. COMPATIBILITY: All Optic Adapter Plates (Sold Separately) in the FAST Modular Accessory Suite EXCEPT for the plate with an Aimpoint Micro footprint MOUNT TYPE: 2 Cross Bolt Rail Clamp FAST QD Lever Compatible (Sold Separately) NOTE: The FAST MRDS is NOT compatible with the FAST Optic Adapter Plate with an Aimpoint Micro footprint. Specifications for Unity Tactical MRDS Mount: Manufacturer: Unity Tactical Finish: Type III Hardcoat Anodized Fabric/Material: 7075-T6 Aluminum Height: 2.26 in Weight: 3 oz Condition: New Light/Laser Attachment: Trijicon RMR Optic Cut: Trijicon RMR Quantity: 1 Package Contents: Unity Tactical MRDS Mount