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Questions & Answers
would this plate work FN 509c? Expert Answer

This C&H Precision Weapons FN 509 Adapter Plate will fit optic ready models of the FN 509, including the 509C. However, if you do not have an optic ready model of the 509C, then you will need to use the Evolution Gun Works Trijicon RMR Sight Mount which can be found linked below:
https://www.opticsplanet.com/evolution-gun-works-trijicon-rmr-sight-mount-1-780-in-aluminum.html

by Ethan, Gear Expert, May 15, 2023
Customer Reviews
Most Recent Reviews ChpwsFN 509 rmr adapter by Al, Verified Owner, August 15, 2025
Great plate. Definitely a step over the 2 piece original. Plate is solid. I believe it will hold better zero of the optic. Everything came in package. Screws n plate. Chpws has great plates I also have them for Glocks which they are on all mine.
Most Recent Reviews Great plate by Dan, Verified Owner, January 4, 2025
Awesome quality, as advertised. Installed on my FN 509 to mount a 507C or switch to my RMR
Most Recent Reviews 509 compact by Andre Paschal, Verified Owner, November 18, 2024
This was a perfect fit for my 509! Very happy with My purchase
Most Recent Reviews FN 509 adapter plate by Chris702, November 9, 2023
Extremely high quality and precise cut! Definitely recommend this item! Fast shipping very happy
Read All 4 Reviews
Red Dot Sights-Footprint: RMR Optic Cut: Trijicon RMR , Trijicon SRO Gun Model: FN 509

Code: 5HT-SAP-CH50FN-FN509-RSH

MPN: FN509-RSH

UPC: 616943732153

List: $107.99Save 20%
$85.99

Product Info for C&H Precision Weapons FN 509 Adapter Plate

The C&H Precision plates are designed, manufactured and shipped from our small family owned business in Coastal Georgia. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers.image

Specifications for C&H Precision Weapons FN 509 Adapter Plate:

Manufacturer: C&H Precision Weapons
Red Dot Sights-Footprint: RMR
Optic Cut: Trijicon RMR, Trijicon SRO
Fabric/Material: 6061 Aluminum
Color: Black
Gun Model: FN 509
Finish: Mil-Spec Type III Hard Anodized
Attachment Type: Screw
Weight: 0.125 lb
Gun Make: FN Herstal
Length: 6 in
Width: 4 in
Height: 0.25 in
Condition: New

Package Contents:

  • C&H Precision Weapons FN 509 Adapter Plate
  • Optic Plate
  • 6-40 RMR Mounting Screws
  • 6-40 Holosun Mounting Screws

C&H Precision Weapons FN 509 Adapter Plate Orderable Models

List of Orderable Models

C&H Precision Weapons FN 509 Adapter Plate, Trijicon RMR/SRO, Holosun, 407C, 507C,508C, 508T, Black, FN509-RSH , MPN: FN509-RSH , UPC: 616943732153 , Code: 5HT-SAP-CH50FN-FN509-RSH

C&H Precision Weapons FN 509 Adapter Plate Unavailable & Discontinued Models

List of Unorderable Models

C&H Precision Weapons FN 509 Adapter Plate, Holosun 509T, Black, FN509-509T , MPN: FN509-509T , UPC: 616943732184 , Code: 5HT-SAP-CH50FN-FN509-509T
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