This ZeroTech Thrive HD Reflex Red Dot Sight is built for shooters seeking fast target acquisition and reliable performance across handguns, rifles, and shotguns. The sight delivers a crisp 3 MOA red dot reticle with 1x magnification through a 28mm x 20mm objective lens, providing unlimited eye relief and field of view for close to mid-range shooting. Advanced motion sensor technology automatically powers the sight on and off to extend the CR2032 battery life up to 50,000 hours, while 11 adjustable brightness settings and multi-coated lenses ensure clear vision in varying light conditions. Built on a lightweight aluminum alloy chassis weighing approximately 88 grams with battery, the Thrive HD is completely waterproof, shockproof, and fog-proof to withstand demanding environments. The sight features side-loading battery access requiring no removal from the firearm, windage and elevation adjustment across 90 MOA at 1 MOA per click, and an RMR footprint for broad compatibility with optics-ready platforms. This high mount version includes a Picatinny rail clamp for elevated positioning, plus a rubber protective cover, microfiber lens cloth, attachment tool, and instruction manual. RMR footprint fits optics-ready slides and rails Motion sensor auto-on and auto-off extends battery life High mount provides elevated co-witness sight picture The ZeroTech Thrive HD Reflex combines rugged construction with intelligent features designed for rapid deployment and consistent accuracy in any shooting scenario. Its compact 45mm length and versatile mounting options make it a practical choice for shooters requiring a dependable reflex sight solution.