<p>The HOLOSUN® HE407K X2 Open Reflex Optical Sight is designed for subcompact pistol applications. This HOLOSUN reflex sight improves on prior models by adding Lock Mode which locks the buttons to prevent inadvertent setting changes. Shake Awake™ extends battery life to as much as 50,000 hours by using a motion sensor to deactivate the LED when it's not in use, and waking up when it detects motion. The HE407K X2 boasts a Super LED, providing 12 brightness intensities (10 DL and 2 NV compatible) for easy visibility day or night. Multicoated optic with 6MOA dot reticle delivers parallax-free viewing with unlimited eye relief and 1X magnification. The durable housing is made from 7075 aluminum, while the CR1620 battery (not included) sits in a side-mounted tray for easy replacement when needed. The HOLOSUN HE507K X2 Open Reflex Optical Sight is a direct for P365X/XL, and requires an adapter plate for slides with a 4-boss interface. 1.6L x .98W x .95H.</p> <ul> <li>Designed for subcompact pistols</li> <li>Made from durable 7075 aluminum</li> <li>Lock Mode prevents accidental setting changes</li> <li>Shake Awake preserves battery life with a motion sensor</li> <li>Super LED with 12 intensities for day or night use</li> <li>6MOA dot reticle</li> <li>Side-mounted battery tray</li> </ul>