OCTGear Green & Red 4 Reticle Reflex Sight Electro Sight RDS-33 for Shotgun Rifle Pistol Tubeless Open Reflex Design 4 Separate Reticle Patterns In Both Red and Green for every Tactical Situation 12 Different Brightness Settings (6-Red 6-Green) Integral Weaver-Picatinny Rail Base Great for Rifles-Shotguns-Pistols