Sightron SI Riflescope 3.5-10x50mm Matte Black #SI3.510x50 Multi-coated objective and ocular lenses, finger adjustable windage and elevation knobs give you precise click adjustments found in other much more expensive scopes. It is waterproof, shockproof and nitrogen charged. Specifications: -Finish: Matte Black -Field of View @100 Yards: 31.9-10.6ft -Tube Diameter: 1" -Weight: 15.9 oz. -Length: 12.80" -Click Value: 1/4 MOA -Eye Relief: 3.7-3.5" -Reticle Type: Plex Shipping Weight: 1 lb. 6 oz.