Eotech EXPS3-0 Features30 brightness settings: 20 levels for daytime use, 10 levels for use with Gen I/II/III night vision devices1/8" shatter-resistant glass front window, and 3/16" shatter-resistant laminate rear windowAnti-reflective coated optics ensure bright and clear views through the sight windowUnlimited eye relief when using both-eyes-open shooting techniques1x magnification is ideal for close quarter use or when clearing roomsTotal windage and elevation adjustment range of 40 MOAUser-facing raised on/off and intensity selection buttons8- or 4-hour selectable auto shut-offGenerous 1.2x0.85" sight window90-foot field of view at 100 yardsAuto battery check indicatorSpecificationsBattery Life: 1,000 continuous hours at nominal setting 12 at room temperatureMount Type: Quick Detach Mount with 7mm Raised BaseOperating Temperature: -40F to 140F (-40C to 60C)Windage & Elevation Adjustment: 0.5 MOA per clickMount: Fits Weaver or MIL-STD-1913 railStyle: Reflex (Anti-Reflection Coated)Water Resistant: 33ft. (10 m) depthMagnification: 1x, Parallax-FreeNight Vision Compatible : YesBattery: CR123 IncludedLxWxH: 3.8" x 2.3" x 2.9"Made in the USAWeight: 11.2 OunceFinish: Matte blackReticle Color: RedReticle: 1 MOA Dot