Ultimate Arms Gear Tactical Dual Red / Green Illuminated CQB Warfare Edition 4 Reticle Open Reflex Scope Sight with Weaver-Picatinny Rail Mount Tubeless Open Reflex Design - Battery Included 4 Separate Reticle Patterns In Both Red and Green 6 Diferent Brightness Settings (3-Red 3-Green) Weaver-Picatinny Rail Base Windage and elevation adjustments