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Holosun 407K/507K Optic Plate Adapter – FN 509T

SKU: HSKPLT-FN509

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Holosun 407K-X2 6 MOA Red Dot – Red

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Compact Optic Integration for Your FN 509T

Compact optics like the Holosun 407K and 507K offer fast target acquisition, precision, and durability. With this adapter, you can bring those benefits to your FN 509 Tactical pistol while maintaining a robust aiming solution. It’s the perfect solution for shooters who prioritize performance and compact capability. Fast target acquisition and compact design make this setup ideal for all shooting situations.

Compact Optic Compatibility

Specifically designed for the Holosun 407K and 507K red dot sights, this adapter plate bridges the gap for FN 509T slides, enabling mounting of compact optics. The Holosun 407K and 507K footprint is also compatible with many other mini red dots such as the AT3 ARO Mini, Shield RMS, Sig Romeo-X, Sig Romeo Zero, and many more optics.

Strong and Secure Adapter

The plate and screws are made from 7075 T6 Aluminum to avoid issues such as bending, warping, or breaking that other adapter plates that use a weaker metal can have. This adapter plate ensures a tight, wobble-free connection to maintain your optic’s zero under recoil.

Low-Profile Design

Maintaining a thin and unobtrusive profile keeps your firearm looking good and doesn’t raise your optic as high as other optic plates.

Simple Installation

Comes with all the necessary hardware, allowing a straightforward installation to easily and securely mount your optic without compromising performance or needing to take your firearm to a gunsmith.

Compatibility

  • FN 509T
  • Holosun 407K and 507K, AT3 ARO Mini, Shield RMS, Sig Romeo-X, Sig Romeo Zero, and many more optics

Specifications

  • Brand: Holosun
  • Model: Holosun 407K/507K Optic Plate Adapter – FN 509T
  • MPN: HSKPLT-FN509
  • Fit:
    • Firearm Slide Mount – FN 509T
    • Optic – Holosun 407K and 507K
  • Material: 7075 T6 Aluminum
  • Finish: Type III Hard Anodized Finish

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Your Holosun product is warranted to be free of defects in materials and workmanship to the first owner upon registration of the product. This warranty specifically applies to the metal structure, optical and illumination systems. The metal structure/housing and optical system (glass) of your Holosun product is warrantied for the life of the product under normal, personal use. Under the Holosun Warranty, the illumination system (LED), is warrantied for 10 years from the manufacture date under normal, personal use. In the event of a confirmed defect under this warranty, we will, at our option, repair or replace the product with a Holosun product of similar type/function, and of equal or greater value. Holosun reserves the right to make substitutions for similar product/s if the warrantied model in question is no longer in production. This Holosun Warranty does not apply to: (a) asserted defects caused by normal wear and tear of any part including knobs, finish, etc.; (b) asserted defects caused by modification including; aftermarket finishes, unauthorized service, improper maintenance, acts of Nature; and (c) asserted defects involving subjective personal likes or judgments. Also, this warranty is null and void if modification or maintenance is provided by someone other than Holosun. Holosun may restrict warranty service for our products to the country from which Holosun or its authorized dealers originally sold the Holosun product. For warranty claims outside the United States, the costs of shipping or transporting the product (including to and from Holosun or our dealer), any insurance or any fees, duties and taxes are the sole responsibility of the purchaser and will not be covered by this warranty.

Registration is required to validate this warranty. For product registration click here. For a warranty claim, click here.

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