The Vortex Crossfire Red Dot Sight is a no-nonsense economic reflex sight designed for AR15s, PDWs, and Shotguns! It features durable aluminum housing that protects the windage and elevation turrets as well as the internal electronics. 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 both a low height mount and a lightweight skeletonized lower 1/3 co-witness mount for firearms with installed iron sights, but mounts with T1/T2 footprints can be used as well. Features of the Vortex Crossfire Red Dot Sight:2 MOA Dot 9 daytime / 2 NV settings Low mount & 1/3 co-witness mount included Compatible with mounts with T1/T2 footprints Vortex Crossfire 2 2MOA Green Dot CF-GD2