This MTC scope has a 30mm tube - industry-standard, Target turrets with protective caps - target turrets offer maximum versatility, screw-on caps protects your settings in the field, 5-20X zoom, with other ranges under development, AMD reticle, 2nd focal plane - offers versatility and an unobstructed sight picture, Illuminated red reticle, 11-steps plus off, Side adjustable PA, sharp image and minimal depth of field - focus range from infinity down to 10 yards, Waterproof, fogproof, shockproof & nitrogen purged, Korean engineered, fully multi-coated lenses - maximum light transmission plus minimum flare, Genuine Butler Creek flip-up covers supplied - front and rear, protect from dirt and water in the field and gun bag, Coil erector spring. Sunshade also supplied.