Beileshi 1x30 Red/Green Dot Sight with Integral Picatinny Mounting Deck Beileshi Red/Green Dot Sight with Integral Picatinny Mounting Deck Optimal Brightness Settings for Variable Shooting Environment Great Field of View and Unlimited Eye Relief Complete with Integral Picatinny Mounting Deck with Double Locking Nuts and Flip-open Lens Caps