Holosun HE507K-GR X2 Compact Multi-Reticle Green 2 MOA Dot & 32 MOA Circle Open Reflex Sight w/ Shake AwakeThe Holosun HE507K-GR X2 Compact Multi-Reticle Green 2 MOA Dot & 32 MOA Circle Open Reflex Sight with Shake Awake HE507K-GR-X2 is designed for subcompact pistols, featuring a Green Super LED, Multi-Reticle Green Circle Dot system, and Shake Awake technology for versatility and energy efficiency. With an impressive 50,000-hour battery life and the added security of Lock Mode, which prevents inadvertent setting changes, this optic provides reliability and ease of use. Crafted with a durable 7075 Aluminum housing, Holosun's K footprint, and a side-mounted tray for the 1632 battery, the Holosun HE507K-GR X2 is a direct fit for P365X/XL and requires an adapter plate for slides with a four-boss interface, making it an advanced choice for subcompact pistol optics. Holosun HE507K-GR-X2 Compact Multi-Reticle Green Circle Dot Open Sight w/ Shake Awake HE507K-GR-X2