SI Series RiflescopeFeatures:- Diopter adjustment ranges from -2.0 to +1.0 settings- The round knurled dials are complete with positive clicks and provide all the precision needed to complement your Sightron scope- This scope features the ultimate in all weather construction- They are waterproof, nitrogen filled and provide a lifetime of internal fog protection for inclement weather- Magnification: 3.5-10x- Object Diameter: 50- Eye Relief: 3.1-3.8- Reticle Type: Duplex- Click Value: 1/4 MOA- Fov: 31.9-10.9- Length: 12.56- Tube Diameter: 1- Windage Elevation Travel: 70- Weight: 17.70- Finish: Matte Black- Minutes Per Revolution: 15- Knob Type: Hunting- Sunshade Included: No- Lens Cover Included: Yes- Waterproof: Yes- Windage Elevation Knobs: Finger Adjustable- Adjustable Objective: No- Fully Multi Coated: Multi Coated