Truglo dual color open red dot sight features a 5 moa reticle for quick acquisition and two (2) choices of reticle color for contrast against any target/background.It also utilizes adjustable rheostat for brightness control unlimited eye relief click windage and elevation adjustments and has a wide field of view.The dual color open red dot also features a 24x34mm window for ultra-fast target acquisition anti-reflection coating integrated weaver style mounting system and includes 3v-cr2032 battery.Battery: CR2032Magnification: 1xObjective: 34mmField Of View: WideEye Relief: UnlimitedDot Size: 5 MOALength: 3.54"Weight: 4.30 ozFinish: Black MatteReticle: Red/Green DotAdjustment Size: 1" @ 100 ydsProofs: Weather ResistantOptic Coating: Anti-ReflectionWindage Elevation: 30 MOA