This is the latest fast-target acquisition red dot sight from Leupold.

The glass-etched reticle can be used with or without included illumination module, unlike other red dot sights that become useless once their batteries run-out The Prismatic has the thickest main tube of any Leupold ever built, and is the most durable Leupold scope built to date. The unit comes standard with a removable red LED illumination module, and adjustable height base system of three spacers, giving the user the choice of four mounting heights.
Comes complete with LaRue Tactical LT691 QD mount, installation tools and instructions.