Adapt Your FNX45 for a Closed Emitter Solar Powered Optic
The Holosun 509T Optic Plate Adapter is the perfect solution to put a Holosun 509T on your FNX45. This part helps you not stack adapter plate on adapter plate like a Jenga tower by giving the 509T a simple and low-profile way to mount directly to your FN FNX45 pistol. A large pistol like the FNX45 deserves a durable red dot like the Holosun 509T and a big flashlight to round it out.
Seamless Compatibility
Converts the FN FNX45 Tactical footprint on your slide to securely mount the Holosun 509T and SCRS red dot. The SCRS is meant for rifles so it will sit a little higher and not a flush as the 509T but it can be used. The SCRS may also not work in conjunction with certain rear sights.
Strong and Secure Adapter
The plate and screws are made from 6061 T6 Aluminum to avoid issues such as bending, warping, or breaking that other adapter plates that use weaker metal can have. Additionally, this adapter plate has been tested to withstand rigorous use and heavy recoil, ensuring your optic stays secure and zeroed.
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.
Long Term Durability
It provides a rock-solid connection between the optic and slide, preserving your zero for consistent accuracy. The enclosed design of the 509T, combined with this adapter, ensures unparalleled reliability by protecting the red dot emitter from dirt, dust, and debris—ideal for tactical, competitive, and defensive shooting.
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 FNX45 Pistols
- Holosun 509T and Holosun SCRS Red Dots
NOTE: This plate DOES NOT fit the 509T ACSS Vulcan
Benefits of Switching to the Holosun Holosun or SCRS
- Enclosed emitter design to keep out dirt, snow, and other debris
- All models of the 509T and SCRS also have a solar-powered failsafe to ensure you can always use it, even if the battery is dead.
- The ability to change batteries without removing the optic means you don’t have to re-zero every time the battery is changed, unlike the Trijicon RMR
Specifications
- Brand: Holosun
- Model: 509T Optic Plate Adapter – FN FNX45
- MPN: HS509PLT-MOS9MM
- Fit:
- Firearm Slide Mount – FN FNX45
- Optic – Holosun 509T and SCRS models
- Material: 6061 T6 Aluminum
- Finish: Type III Hard Anodized Finish
