C&H Precision V4 Optic Mounting Plate – FN 509/510/545 to Holosun EPS/EPS Carry – FN509-EPS
The C&H Precision FN509-EPS (616943736144) is a duty-grade mounting solution engineered to adapt optics-ready FN 509, 510, and 545 pistols for enclosed emitter red dots. In 2026, the Holosun EPS and EPS Carry have become the gold standard for enclosed optics, and this V4 series plate provides the secure, low-profile interface needed for hard-use applications. Unlike standard factory plates that can be bulky or prone to screw shear, C&H Precision utilizes a patented stainless steel T-Nut/T-Post system. This design provides 6 to 7 threads of engagement—far exceeding the industry standard—and ensures that if hardware is ever over-torqued or damaged, it can be replaced without discarding the entire plate.
Machined in Coastal Georgia from 6061 aluminum and finished with a MIL-SPEC Type III hard anodized black coating, the FN509-EPS is designed to withstand the violent reciprocating forces of high-volume fire. The plate's thickness (approx. 0.095") is optimized to keep the optic as low as possible on the slide, facilitating a more natural point of aim and often allowing for a cowitness with suppressor-height iron sights. Every plate undergoes rigorous multi-stage quality checks to ensure a perfect fit on your FN's slide. For professionals and defensive shooters who demand a "zero-failure" optics mount, C&H Precision is the definitive choice for the FN platform.
Includes: (1) V4 Optic Mounting Plate, (2) M3 Plate Mounting Screws, (2) 4-40 Optic Mounting Screws, and (2) 416 Stainless Steel T-Nuts.
Key Features
- V4 Performance Engineering: Specifically designed to convert FN 509, 510, and 545 "Optics Ready" slides to the Holosun EPS / EPS Carry footprint.
- Patented T-Nut System: Replaceable 416 stainless steel T-posts maximize thread engagement and allow for easy hardware replacement if damaged.
- Low Profile Design: Minimizes the height-over-bore, ensuring faster target acquisition and better compatibility with backup iron sights.
- MIL-SPEC Type III Anodizing: Provides an exceptionally hard surface that is resistant to scratches, salt-spray corrosion, and chemical exposure.
- Precision CNC Machined: Forged from 6061-T6 aluminum on HAAS CNC machines for tight tolerances and a seamless aesthetic fit.
- Made in the USA: Designed, manufactured, and quality-tested in Richmond Hill, Georgia.
Product Specifications
- Brand: C&H Precision (CHPWS)
- Model: V4 Optic Mounting Plate
- Compatibility (Pistol): FN 509, FN 510, FN 545 (Optic Ready Models)
- Compatibility (Optic): Holosun EPS, Holosun EPS Carry, SCS Carry
- Material: 6061 Aluminum Plate / 416 Stainless Steel Hardware
- Finish: MIL-SPEC Type III Hard Anodized (Black)
- Plate Thickness: ~0.095"
- Weight: 0.96 oz
- MPN: FN509-EPS
- UPC: 616943736144
