The HE508T-RD X2 is a hard-use open reflex sight designed for handgun applications. Features include a grade 5 titanium housing with industry standard footprint, Holosun's ultra efficient 650nm Red Super LED with up to 50k hour battery life from a 1632 battery, and a Multi-Reticle System providing 2MOA dot only, 32MOA Circle only, or Circle-Dot combination.HE508T-RD X2 also features Solar Failsafe and Shake Awake technology, and Lock Mode which, when activated, can prevent inadvertent setting changes. HE508T-RD X2 feature 12 intensity settings, two of which are compatible with night vision devices.Reticle: 2 MOA Dot & 32 MOA CircleReticle Color: RedDot Height: 0.63"Footprint: RMRParallax Free: YesUnlimited Eye Relief: YesMagnification: 1xMulti-Coatings: YesPower Source: CR1632 BatteryBattery Life: 50,000 HoursBrightness Settings: 10 Day Light & 2 Night VisionWeight: 2 ozHousing Material: TitaniumAdjustment Per Click: 1 MOAW&E Travel Range: + or - 50 MOASubmersion: IP67Vibration: 5000GColor: Black