1 inch mono-tube chassis for superior strength; 11 layer fully multi-coated optics for excellent clarity; Adjustable objective for parallax correction; Fast focus eyebell and high torque zoom ring; 1/4 MOA low profile "no-snag" fingertip turrets; Threaded objective/ocular for optional accessories; Mil Dot Reticle features multiple aim points for hold-over and hold-under; Waterproof, Shockproof, Nitrogen purged; Hawke Worldwide Warranty