The American Defense Mfg AD-509T Holosun 509T QR Mount is expertly designed for use with the Holosun 509T red dot sight, making it an ideal choice for AR pistols and other platforms that require a lightweight and compact red dot system. This precision-crafted mount is made from durable 6061 T6 aluminum and features a hard coat T3 Mil-Spec anodized finish for added resilience. Its innovative Patented QD Auto Lock Lever system ensures a secure fit on both in-spec and out-of-spec rail systems, providing versatility and reliability in the field. Elevate your shooting experience with the AD-509T Holosun 509T QR Mount.