Notice: Due to unforseen circumstances, our Honor Flight Raffle drawing will take place on Monday, August 17th, at 2pm. We apologize for any inconvenience.
Eligible for $5.99 Flat Rate Shipping
  1. Home
  2. Optics & Electronics
  3. Mounts Rings & Bases

American Defense Mfg Holosun 509T QD Mount

American Defense Mfg Holosun 509T QD Mount
Temporarily Out of Stock
Vance Advantage Members earn $1.26 in rewards with this purchase. Join Today
Free In-Store Pickup
Columbus: Out of Stock
Hebron: Out of Stock
Lebanon: Out of Stock
Obetz: Out of Stock
Springdale: Out of Stock

Your pickup store is:

Vance Outdoors Obetz

4250 Alum Creek Dr.
Obetz, OH 43207

Change store

In-store pickup

Ship this to me

This item is currently out of stock at the store you've chosen.

Please note: if you decide to change your pickup store, items from your shopping cart will be removed if they are out of stock at the new store you choose.

Change store


Share this

Product Description

The American Defense Manufacturing AD-509T-10-STD Holosun 509T QD Mount is a lightweight, one-piece mounting solution designed for the Holosun 509T red dot sight. Precision machined from 6061-T6 aluminum, it features a patented QD Auto Lock™ lever system and an absolute co-witness height for a secure, streamlined optic setup.

Product Features

  • Holosun 509T Compatible: Designed specifically for the Holosun 509T red dot sight.
  • Absolute Co-Witness: Positions the optic at an absolute co-witness height with standard-height iron sights.
  • QD Auto Lock™ Lever: Provides quick, secure attachment and removal from compatible rails.
  • Tool-Free Adjustment: Can be adjusted by hand or with a flat-blade screwdriver without proprietary tools.
  • Reversible Lever: The lever can be configured to lock toward the front or rear.
  • Superior Rail Engagement: Provides a large clamping surface for secure attachment to the rail.
  • Lightweight Design: Approximately 30% lighter than ADM's standard mounts.
  • One-Piece Construction: Provides a rigid and durable platform for the optic.
  • Made in the USA: Precision manufactured in the United States.

Product Specifications

  • Product Type: Red Dot QD Mount
  • Model: AD-509T-10-STD
  • Compatible Optic: Holosun 509T
  • Mounting Interface: Picatinny Rail
  • Mount Height: Absolute Co-Witness
  • Mount Style: Quick-Detach
  • Lever Style: Standard
  • Construction: 6061-T6 Aluminum
  • Finish: Type III Mil-Spec Hard-Coat Anodized
  • Design: One-Piece
  • Weight: Approximately 2.3 oz.
  • Color: Black

Customer Comments

Customer Reviews

No reviews have been written for this product.

Write a review