Vortex Crossfire 2.0 MOA Red Dot Sight CF-RD2. The Vortex Crossfire Red Dot Sight is a no-nonsense economic reflex sight designed for PDWs and Shotguns! The 2 MOA red dot is large enough to be easily acquired in close quarters but still precise enough to be effective at longer ranges. The sight comes with the integrated low height mount and a lightweight skeletonized lower 1/3 co-witness mount for firearms with installed iron sights. Features of the Crossfire Red Dot Sight. 11 Brightness Settings (2 Night Vision Settings). Includes: T-10 Torx Wrench, CR2032 Battery, Rubber Cover, Low Height Mount, and Lower 1/3 Co-Witness Mount. This item may be regulated for export by the U. Department of State or US Department of Commerce.