The Holosun 507K X2 is an open-reflex Red Dot sight made specifically for concealed carry applications. Features include the Holosun Super Led with up to 50k hours of battery life, a Multi-Reticle System, Shake Awake, and Lock Mode. AP67 Waterproof and concealed-carry friendly, this sight is made for success. Manufactured from 7075 Aluminum and anodized, the frame of the Holosun 507k red dot is made for durability, and light weight. This Holosun Compact Pistol Red Dot is designed to be smaller and lighter weight, making it perfect for your concealed carry pistol.