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 holosuns ultra efficient 650nm red super led with up to 50k hour battery life from a 1632 battery and a multi-reticle system providing 2 moa dot only 32m oa 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.Battery: CR1632Magnification: 1xObjective: 0.63" x 0.91"Eye Relief: UnlimitedDot Size: 2 MOA Dot/ 32 MOA CircleLength: 1.78"Weight: 2.0 ozFinish: Black AnodizedReticle: 2 MOA Red Dot/ 32 MOA Red Circle Multi ReticleAdjustment Size: 1.0 MOAProofs: IP67 WaterproofOptic Coating: Multi-CoatedWindage Elevation: Adjustable