Wide field of view for both-eyes-open operation; Parallax-free from 11 to 164 yards; Manual intensity settings, six daylight and two for use with night vision gear; 1 MOA per click impact point correction; 90 MOA windage and elevation adjustment range; Fits all Docter base plates and most manufacturer's adapters; Lightweight all-metal housing; Waterproof, submersible to 33'; Broad -40 to 140degF operating temperature range; Runs on one CR1632 coin-cell battery, 13,000-hour max runtime