FN 509 Plate System
The FN 509 Plate System is a factory optic plate system. 509 MRD ships a plate set covering common footprints. Below: every gun in our catalog with this system, and the footprints its plates accept.
3 firearms
Guns with the FN 509 Plate System
Footprints it accepts — via the included plates
This system ships with interchangeable plates, so any optic on these footprint pages mounts with the matching plate: