Ultimate Arms Gear Tactical Micro Compact Dual Red & Green Dot Open Reflex Sight With Integral Sunshade And Pistol Rifle Shotgun Mount Base Lightweight Aircraft Aluminum Construction : Shockproof, Water Resistant, Low Power Consuming For Reliability & Durability While Withstanding Heavy Recoil Dual Red/Green Dot Glass Reticle Parallax Corrected & Designed To Use With Both Eyes Open To Maintain Depth And Peripheral Vision Full Windage & Elevation Adjustments Includes : Thermoplastic Lens Cover, Battery, Adjustment Tools & Ultimate Arms Gear Lifetime Manufacturer's Warranty