The SPARC AR Red Dot Sight is a compact, rugged, and versatile reflex sight designed for AR15 rifles and pistols as well as other PDWs. The 2 MOA red dot is large enough to be easily acquired in close quarters but still precise enough to be effective at longer ranges. The SPARC AR uses a AAA battery to provide up to 55,000 hours of service. The sight comes with two mounts - one that allows for absolute co-witnessing and one that allows for co-witnessing in the lower 1/3. Features of the SPARC AR Red Dot SightFully Multi-Coated LensesParallax Free2 Night Vision SettingsLightweight & CompactWaterproofShockproofThis Package IncludesT-10 Torx WrenchAAA BatteryRubber Cover w/ Flip CapsAbsolute Co-Witness MountLower 1/3 Co-Witness Mount Vortex Optics Vortex SPARC AR Red Dot (2 MOA Bright Red Dot) SPC-AR2