SpecificationsConstruction: MetalMagnification: 1XWeight: 10.2 OzLength: 5.3 In.Objective Lens Diameter: 30MmAdjust Method: CoinClick Value: 1/4 MoaReticle: Red/GreenShockproof: YesNitrogen Filled: YesOptical Coating: MultiColor: BlackFeaturesIncredibly Tough Tempered Metal Alloy Manufacturing Proves To Outlast And Endure In The Field Against The Elements And Debris.Rugged Nitrogen Filled And Shock Proof Body Enhances Sight Vitality.Dual Reticle Color Type Feature Allows A Red Or Green Visual Hue To Promote Optical Ease During Any Scenario.Multi-Optical Coating Adds Ease In Visual Alignment Between Operator And Target.Adjustable Picatinny Rail Adapter System Easily Fits 11Mm/22Mm Rails Making This One Versatile Sight. Included Laser With Pressure Activation Reaffirms Your Target As You Close In.