BARSKA Optics 3-9x42 Contour w/Built-in Ring & Top Rail AC12468 3-9x Magnification, 42mm Objective Lens Illuminated Red/Green Mil-Dot Reticle, Fully Multi-Coated Optics 1in Scope Tube, 1/4 MOA Click Adjustments External Wind age and Elevation Turrets 100% Waterproof, Fog proof, and Shockproof