The AD-AEMS QD mount is engineered specifically for the Holosun AEMS Red Dot, providing a precision-machined mounting solution with rapid deployment through American Defense MFG's patented QD Auto Lock™ Lever system. Constructed from durable 6061 T6 aluminum and finished with hard coat T3 Mil-Spec anodize, the mount delivers long-lasting durability and corrosion resistance for demanding applications. The patented auto-locking QD mechanism is designed to accommodate both in-spec and out-of-spec rail systems, providing reliable and repeatable mounting across a variety of platforms. Note. Holosun produced approximately 500 of the original first-run AEMS Red Dots with incorrect rear screw hole spacing. If you have one of these Red Dots and it does not fit the mount, Holosun will exchange it for a newer-generation AEMS Red Dot. Screws not Included. This mount does not include mounting hardware. Factory hardware must be used for installation. Compatibility note: This mount is not compatible with the RONIN AEMS MAX or RONIN MAX. FEATURES: The AD-AEMS mount features the Patented QD Auto Lock™ Lever system. Does not require proprietary tools for adjustment. Can be adjusted with your finger or a flat blade screwdriver. Lever can be configured to lock to the front or the rear. Superior clamping surface to insure maximum rail engagement.