SpecificationsConstruction: MetalWeight: 15.9 OzLength: 5.5 In.Objective Lens Diameter: 23MmAdjust Method: CoinClick Value: 1/4 MoaReticle: Red/Green DotShockproof: YesNitrogen Filled: YesColor: BlackFeaturesIncredibly Tough Tempered Metal Alloy Manufacturing Proves To Outlast And Endure In The Field Against The Elements And Debris.Four Pattern Reticle Provides Additional Measures Of Accuracy To Ensure You Make The Mark. Simply Rotate And Adjust To Your Pattern Preference.Rugged Nitrogen Filled And Shock Proof Body Enhances Scope Vitality.Fiber Optic Sight Ensures Operator Can Easily Acquire Target.Pre-Set Parallax And Adjusted For Sighting Of Up To 100 Yards.