American Defense AD-509T Holosun 509T Quick Detach Mount

The American Defense Manufacturing AD-509T Quick Detach Mount is designed specifically for optics using the Holosun 509T footprint. Precision machined from 6061-T6 aluminum and finished with a Type III hard coat anodize, the mount provides a strong and lightweight mounting solution. ADM’s patented Auto Lock QD lever system allows fast attachment and removal while maintaining secure lockup and reliable return-to-zero on Picatinny rail platforms. The mount is available in multiple height configurations including low, absolute co-witness, and lower 1/3 co-witness to accommodate different rifle and optic setups.

Product Variants

• AD-509T-10-STD – 810008517819
  Mount Height: Absolute Co-Witness
  Finish: Black Hardcoat Anodized
• AD-509T-11-STD – 810008517642
  Mount Height: Lower 1/3 Co-Witness
  Finish: Black Hardcoat Anodized
• AD-509T-L-STD – 810008517789
  Mount Height: Low Mount
  Finish: Black Hardcoat Anodized

Key Features

• Designed for Holosun 509T footprint optics
• Patented ADM Auto Lock quick detach lever system
• Precision machined 6061-T6 aluminum construction
• Type III hard coat anodized finish for durability
• Tool-free adjustment for rail compatibility
• Compatible with standard Picatinny rail systems
• Available in multiple optic heights for different setups
• Made in the USA

Technical Specifications

• Brand: American Defense Manufacturing
• Product Name: AD-509T Holosun 509T Quick Detach Mount
• Model: AD-509T
• Materials: 6061-T6 Aluminum
• Dimensions: Manufacturer Not Specified
• Weight: 2.3 oz (approx. depending on mount height)
• Country of Manufacture: United States
• Condition: New
• Warranty: Manufacturer Lifetime Warranty

What’s Included

• American Defense AD-509T Quick Detach Mount
• Mounting Hardware