C&H Precision V4 MIL/LEO Adapter Plate – FN FNX-45 to Trijicon RMR / Holosun – FNX45-RSH
The C&H Precision FNX45-RSH (V4 MIL/LEO Series) is the professional-grade mounting solution for shooters looking to adapt the FN FNX-45 Tactical to the industry-standard Trijicon RMR footprint. While the FNX-45 is an optics-ready powerhouse, factory plates can often be thick or made of polymer, which can compromise thread engagement and optic height. In 2026, C&H Precision remains the gold standard for aftermarket plates, offering a CNC-machined 6061 aluminum interface that is thinner, lighter, and stronger than OEM alternatives. This "MIL/LEO" version is specifically designed to withstand the harsh reciprocating forces of .45 ACP, providing a "V4" architecture that ensures maximum thread engagement and a rock-solid, zero-movement lockup for duty or tactical use.
Precision-engineered in Coastal Georgia, the FNX45-RSH features a MIL-SPEC Type III Hard Coat Anodized finish for extreme durability. The plate is machined to a precise thickness of .095" to .099", allowing your optic to sit as low as possible on the slide for a more natural point of aim and better co-witness with suppressor-height iron sights. It supports a wide array of optics, including the Trijicon RMR/SRO and the Holosun 407C, 507C, and 508 series. Each plate includes the necessary stainless steel mounting hardware and goes through multiple quality checks before leaving the facility. For the FNX owner who refuses to compromise on optic security, this C&H plate is the definitive mounting hardware.
Includes: (1) C&H Precision FNX45-RSH Adapter Plate and (1) Stainless Steel Mounting Hardware Kit.
Key Features
- V4 MIL/LEO Architecture: Engineered for duty use with increased thread engagement and superior lateral stability for the optic.
- 6061 Billet Aluminum: CNC-machined from high-strength aerospace aluminum—much more durable and rigid than standard polymer plates.
- Ultra-Low Profile: At less than .100" thick, it keeps your optic's centerline as close to the bore as possible for improved accuracy.
- Broad Optic Compatibility: Fits Trijicon RMR/SRO, Holosun 407C/507C/508C/508T, and other RMR-footprint red dots.
- Hard Coat Anodized: Type III anodization provides a non-reflective, scratch-resistant matte black finish.
- Made in the USA: Proudly designed, machined, and finished in the United States by a family-owned business.
Product Specifications
- Brand: C&H Precision (CHPWS)
- Model: V4 MIL/LEO FNX-45 to RMR Adapter Plate
- Footprint: Trijicon RMR (Fits SRO / Holosun 407C/507C/508T)
- Material: 6061 Billet Aluminum
- Hardware: Stainless Steel Torx Screws
- Fits: FN FNX-45 Tactical (Optics Ready)
- Weight: 0.12 lbs
- Finish: Black Hard Coat Anodize
- MPN: FNX45-RSH
- UPC: 616943731798
