Vector Optics Low Light 2.5-10X56IR Riflescope Etched Glass R10 Reticle (German #4), Green And Red Illumination, Wide Field Of View, 30mm Monotube, 3 Inch Sunshade, And Finger Adjustment Magnification: 2.5-10X Objective Lens Dia: 56mm Ocular Lens Dia: 43mm Ocular Length: 67mm Exit Pupil: 5.6-13.2mm Length: 380mm (15.0 Inch, Not Include 3 Inch Sunshade) Weight: 620G (21.9 Ounce, Not Include 3 Inch Sunshade) Eye Relief: 75-80 mm (2.9-3.1 Inch) Field Of View (ft@100yds):  10.5-29.7 Field Of View (M@ 100M): Field Of View (@100yds): Num Of Lens: 10 Optics Coating: Fully-Multi Coated To Eliminate Glare And Maximize Light Transmission Reticle: Etched Glass R10 (Germany #4) Reticle Evaluation Range: ± 25 MOA Windage Range: ± 25 MOA 5 Levels Brightness Illumination System In Red And Green Tube Dia.: 30mm Monotube Shock Proof (1000G), Water Proof And Fog Proof (Nitrogen Purged) High-Durability Aluminum Alloy In Black Matt And Beautiful Complement Feature 1/4 M.O.A Direct Low Finger Windage And Elevation Turrets adjustments With Audible clicks For greater Precision Diopter Adjustment at Ocular Lens Free Fitting Involved: 30mm Weaver (Default) Or Dovetail Mount, Protective Plastic Caps And 3 Inch Sunshade Etc 3 Year Warrantee SKU: SCOM21