<p>Looking for a failsafe reflex sight for your optics-ready pistol? Specifically designed for concealed-carry applications, the HOLOSUN® HS507K X2 Reflex Sight features a durable 7075 T6 aluminum housing with Shake Awake™ technology for superior reliability and performance. Multilayer reflective glass offers a parallax-free field of view, with minimal light saturation for crystal clear sight acquisition. 12 Super LED brightness settings offer up to 50,000 hours of battery life, with 3 selectable reticles. Operates on one CR1632 battery (included). 1 MOA adjustment per click. IP67 waterproof rating.</p> <ul> <li class=>7075 T6 aluminum construction</li> <li class=>Shake Awake technology for effortless activation</li> <li class=>Multilayer reflective glass</li> <li class=>12 brightness settings</li> <li class=>Up to 50,000 hours of battery life</li> <li class=>3 selectable reticles</li> </ul>