Gamo Outdoors 4-12x40 Air Rifle Scope with Rings

This Gamo scope has fully coated optics, a generous 3" eye relief and a variety of power configurations making this a great scope for most hunting situations. SPECIFICATIONS - Magnification: 4-12X - Objective Lens Diameter: 40 - Coating: Fully Coated - Standard Gamo 30/30 Reticle - Exit Pupil Range: 10.1-3.35 - Eye Relief: 3" - Field of View at 100yds: 25-10.5 - Diopter Compensation: 2/-2 - Twilight Factor: 12.64 - 21.90 - Max Elevation/Windage (ft./100 yds.): 30/30 - Tube Diameter: 24.4/1 - Length, Approx. (mm) (in): 330/13.