Vortex DFST-MRD3-E Defender-ST Enclosed Solar 3 MOA Dot Micro Red DotThe Vortex Defender-ST Enclosed Solar Micro Red Dot DFST-MRD3-E is a rugged, enclosed optic designed for pistols, shotguns, and rifles. Vortex DFST-MRD3-E features a crisp 3 MOA red dot, ideal for fast and precise aiming. The solar-assisted Auto D-TEC system extends battery life up to 150,000 hours, with motion activation and auto shut-off to conserve power. The Vortex Defender-ST Enclosed Solar Micro Red Dot is built for durability and performance in the harshest environments. Its fully enclosed, rugged housing protects the emitter from impacts, dust, and moisture, delivering unwavering reliability when it matters most. Dual power sources—battery and solar—ensure extended runtime and readiness in any situation. Featuring customizable multi-reticle options, it adapts effortlessly to pistols, shotguns, and carbines, offering rapid target acquisition and precision accuracy in any lighting condition, day or night. Features of the Vortex Defender-ST Enclosed Solar Micro Red Dot: Enclosed Aluminum HousingSOLAR with Auto D-TEC TechnologyMotion Activation with 10 Minute Auto-ShutoffDistortion-free sight picture and truer colorsFast-Rack Textured Grip Vortex Defender-ST Enclosed Solar Micro Red Dot 3 MOA Dot DFST-MRD3-E