11 layer fully multi-coated optics for excellent clarity. 1 inch mono-tube chassis for superior strength. Speed selector ring — speeds from 250 to 425 fps. Glass etched reticle with red and green illumination. Rheostat on saddle offers 5 levels of brightness. 1/2 MOA low profile “no-snag” fingertip turrets. Fast focus eyebell and high torque zoom ring. Nitrogen purges – water, shock and fog proof. Hawke worldwide warranty.