C&H Precision FNX-45 Optic Mount Adapter for RMR/SRO/Holosun
C&H Precision Weapons
$53.69
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C&H Precision Weapons
C&H Precision FNX-45 Optic Mount Adapter for RMR/SRO/Holosun
The C&H Precision Weapons FNX-45 Optic Adapter Plate is a precision-machined solution that lets you mount popular red dot sights — including the Trijicon RMR, SRO, and Holosun 507C/407C/508C/508T — directly to your FN FNX-45 Tactical pistol without compromise.
- Compatible with Trijicon RMR, SRO, and Holosun 507C/407C/508C/508T optics
- Designed specifically for the FNX-45 Optic Ready (OR) model
- Precision machined from aerospace-grade 6061 aluminum for lightweight strength
- Includes stainless steel mounting hardware for corrosion resistance and durability
- Manufactured on HAAS CNC machines to the tightest industry tolerances
- Made in the USA by a family-owned business in Coastal Georgia
Who This Is For
This adapter plate is ideal for FNX-45 Tactical owners who want to run a modern red dot optic without milling their slide or purchasing a new pistol. Whether you're a competitive shooter, a home-defense-focused owner, or a duty carrier looking to modernize your sighting system, this drop-in plate delivers a rock-solid, repeatable optic mount at an accessible price point.
Specifications
| Brand | C&H Precision Weapons |
|---|---|
| Model | FNX-45 Optic Adapter Plate |
| Compatible Pistol | FN FNX-45 Tactical (Optic Ready) |
| Compatible Optics | Trijicon RMR, SRO; Holosun 507C, 407C, 508C, 508T |
| Material | 6061 Aluminum |
| Hardware | Stainless Steel Mounting Screws |
| Finish | Anodized |
| Country of Origin | USA |
| Intended Use | Direct optic mounting, no slide milling required |
Frequently Asked Questions
Will this plate work with my FNX-45, or does my pistol need to be a specific variant?
This adapter plate is designed exclusively for the FNX-45 Tactical (Optic Ready) variant, which comes from the factory with a milled slide and optic mounting cuts. It will not fit the standard FNX-45 model, which lacks the factory optic cut. If you are unsure which variant you own, look for the threaded barrel and serrated slide top that are characteristic of the Tactical OR model.
Do I need to permanently modify my slide to install this plate?
No permanent modification is required. The C&H Precision adapter plate is a direct drop-in replacement for the factory optic plate that ships with your FNX-45 Tactical. It installs using the existing slide cuts and the included stainless steel hardware, meaning your slide remains in its original condition if you choose to remove the plate later.
How does this plate hold zero under recoil from a .45 ACP caliber pistol?
The plate is precision machined on HAAS CNC equipment to extremely tight tolerances, ensuring a snug, play-free fit in the slide's optic recess. The 6061 aluminum construction provides an excellent strength-to-weight ratio, and the stainless steel mounting screws — when properly torqued with thread-locking compound — deliver a stable, repeatable zero even under the substantial recoil of .45 ACP. Many competition and duty shooters trust C&H Precision plates for exactly this reason.
