American Defense Mfg Holosun 509T Lower 1/3 Co-Witness QD Mount

The American Defense Manufacturing AD-509T-11-STD QD Mount is designed specifically for the Holosun 509T red dot sight and other compatible optics. Its lower 1/3 co-witness height provides a clear sight picture while maintaining compatibility with backup iron sights. The lightweight, one-piece mount is precision machined from 6061-T6 aluminum and features ADM's patented QD Auto Lock™ Lever system for secure, repeatable attachment to both in-spec and out-of-spec Picatinny rails.

Product Features

• Holosun 509T Compatible: Designed specifically for the Holosun 509T red dot sight.
• Lower 1/3 Co-Witness: Positions the optic at a lower 1/3 co-witness height for use with backup iron sights.
• QD Auto Lock™ Lever: Provides quick attachment and removal while maintaining a secure connection.
• Tool-Free Adjustment: Can be adjusted by hand or with a flat-blade screwdriver.
• Reversible Lever: The lever can be configured to lock toward the front or rear.
• Adjustable Clamping: Accommodates both in-spec and out-of-spec Picatinny rail systems.
• Superior Rail Engagement: Provides a large clamping surface for secure rail contact.
• Lightweight Design: Approximately 30% lighter than ADM's standard mounts.
• One-Piece Construction: Provides a rigid and streamlined mounting platform.
• Precision Machined: CNC machined from 6061-T6 aluminum.
• Durable Finish: Finished with Type III Mil-Spec hard-coat anodizing.
• Made in the USA: Manufactured by American Defense Manufacturing.