The LEAP 11 mount by Scalarworks is the lightest, strongest and most compact quick-detach mount for the Holosun AEMS 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: Holosun AEMS, AEMS Core Specifications Materials: 7075-T6 Aluminum / 4140H Steel Finishes: Type III Anodizing / Flash Nitride Center height over rail: 1.93" Weight: 49g Origin: USA Rails: MIL-STD-1913 Picatinny Includes: Scalarworks(R) Leap(TM) (SW2920) mount, M3x4mm Nylok(R) treated fasteners, T10 Torx driver bit driver and instruction manual. The optics bundle includes all of this plus the Holosun AEMS Red Dot (AEMS-211301) or Holosun AEMS Green Dot (AEMS-221301), Flip-Up lens covers, CR2032 battery and micro tool.