• American Defense AD-509T Low Mount Quick Release Holosun 509T
  • American Defense AD-509T Low Mount Quick Release Holosun 509T
  • American Defense AD-509T Low Mount Quick Release Holosun 509T
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American Defense Manufacturing

American Defense AD-509T Low Mount Quick Release Holosun 509T

American Defense AD-509T Low Mount Quick Release Holosun 509T

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The American Defense AD-509T is a low-profile quick-release mount built specifically for the Holosun 509T red dot sight. Its one-piece body is machined from 6061 T6 aluminum and finished with hard coat T3 Mil-Spec anodizing, giving the mount a durable surface that stands up to regular use on the range or in the field.

The patented QD Auto Lock lever system allows the mount to be attached and removed without proprietary tools, and it can be adjusted by finger or with a flat blade screwdriver. The lever lock is configurable to the front or rear, and the clamping surface is designed for maximum rail engagement, so the mount works with both in-spec and out-of-spec rail systems. This makes it a practical choice for AR pistols and other weapon platforms that need a lightweight, reliable red dot mounting solution with quick detach capability.

Key Features

Brand American Defense Manufacturing
Model AD-509T
Manufacturer SKU AD-509T-L-STD
UPC 810008517789
Condition New
Type Mount
Size Low
Finish Anodized
Material 6061 T6 Aluminum
Compatibility Holosun 509T
Mounting System Picatinny
Quick Release Yes
Country of Origin United States

Highlights

  • Low-profile design for Holosun 509T
  • Patented QD Auto Lock lever system
  • Quick release without proprietary tools
  • 6061 T6 aluminum construction
  • Hard coat T3 Mil-Spec anodized finish
  • Configurable lever lock (front or rear)
  • Superior clamping surface for maximum rail engagement

Compatibility

Compatible with the Holosun 509T red dot sight footprint. The mount fits both in-spec and out-of-spec rail systems.

Frequently asked questions

What red dot sight is the American Defense AD-509T mount compatible with?

It is designed for the Holosun 509T footprint.

What material is the AD-509T mount made from?

It is machined from 6061 T6 aluminum with a hard coat T3 Mil-Spec anodized finish.

Does the mount require tools to adjust the locking lever?

No proprietary tools are needed; the lever can be adjusted by finger or with a flat blade screwdriver.

Can the lever lock be positioned on either side of the mount?

Yes, the lever lock is configurable to the front or rear.

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