The Defender-ST™ Enclosed Solar Micro Red Dot is a tough, adaptable micro-optic built for pistols, shotguns, and carbines. Its fully enclosed, 7075 aluminum housing protects the emitter from impact and the elements while battery + solar power deliver extremely long runtime. Multi-reticle customization, a large viewing window, and unlimited eye relief make it fast to acquire and engage targets in any lighting. With motion activation, button lockout, and a side-load CR2032 battery, the Defender-ST is purpose-built to stay on target in the harshest conditions.