The Sightron SIH39X32RF Rifle Scope features 3-9X magnification with an objective diameter of 32mm and tube diameter of 1 inch. The low profile hunting turret features round knurled dials with positive audible clicks for quick and easy adjustments and has windage and elevation caps. This rifle scope features fully multi-coated lenses that employ coatings on both surfaces of precision ground glass to provide maximum optical quality and light transmission. This scope is also waterproof, shockproof, and nitrogen gas charged. Magnification: 3-9X Objective Diameter: 32mm Tube Diameter: 1 Inch Reticle Type: Crosshair Waterproof and shockproof Nitrogen gas charged