The HE509T-GR X2 is a rugged, nitrogen-purged enclosed LED sight specifically designed for handgun use. Built with a durable grade 5 titanium housing, it features Holosun's Super LED technology, offering an impressive 50,000-hour battery life. The Multi-Reticle System allows you to switch between a 2 MOA dot, a 32 MOA circle, or a combination of both. The X2 version enhances performance with improved glass clarity, Lock Mode, and a full Multi-Reticle System. Additionally, it includes an adapter plate compatible with RMR footprints; however, note that this plate does not fit alternative RMR footprints with threaded bosses, such as those from Zev or Brownells. With 12 brightness settings, including two for night vision compatibility, and IP67 waterproofing, the HE509T-GR X2 is a reliable choice for serious shooters.