OPTIC MOUNTING PLATE FOR FN 509 – FN 509 OPTIC MOUNTING PLATE

OPF-FN509T, RMR is a solid state (one piece), steel plate designed for the FN 509 Tactical and FN 509 MRD.

OPF-FNT09T, RMR is a one piece, billet machined plate for RMR/SRO, it is not guaranteed to work with non-Trijicon sights that have the RMR footprint. The way FN has designed the optics plate for the 509 Tactical is rather unusual to us, it consists of a MIM or cast steel plate with lugs for the RMR, and a larger plastic piece sans any lugs or means to prevent the sight from moving laterally.

Factory FN 509 Tactical sights remain compatible with OPF-FN509T, RMR and provide lower 1/3 co-witnessing.

OPF-FN509T, RMR includes the adapter plate, 2 6-40 x 1/2 T10 screws (same spec as the plates/screws packet included in the 509 Tactical, the FN supplied screws also work on OPF-509T, RMR plate), a packet of VC-3 thread locker, and a T10 key. A proper torque wrench is required to impart the correct torque value to the mounting screws.

  • Torque value for the 6-40 x 1/2 T10 screws is 12 to 13 in lbs.
  • Proudly designed and made in the USA.
Description

Original price was: $80.75.Current price is: $55.81.

OPF-FN509T, RMR is a solid state (one piece), steel plate designed for the FN 509 Tactical and FN 509 MRD.

OPF-FNT09T, RMR is a one piece, billet machined plate for RMR/SRO, it is not guaranteed to work with non-Trijicon sights that have the RMR footprint. The way FN has designed the optics plate for the 509 Tactical is rather unusual to us, it consists of a MIM or cast steel plate with lugs for the RMR, and a larger plastic piece sans any lugs or means to prevent the sight from moving laterally.

Factory FN 509 Tactical sights remain compatible with OPF-FN509T, RMR and provide lower 1/3 co-witnessing.

OPF-FN509T, RMR includes the adapter plate, 2 6-40 x 1/2 T10 screws (same spec as the plates/screws packet included in the 509 Tactical, the FN supplied screws also work on OPF-509T, RMR plate), a packet of VC-3 thread locker, and a T10 key. A proper torque wrench is required to impart the correct torque value to the mounting screws.

  • Torque value for the 6-40 x 1/2 T10 screws is 12 to 13 in lbs.
  • Proudly designed and made in the USA.

4 in stock

SKU 430103574 Category

Description

OPF-FN509T, RMR is a solid state (one piece), steel plate designed for the FN 509 Tactical and FN 509 MRD.

OPF-FNT09T, RMR is a one piece, billet machined plate for RMR/SRO, it is not guaranteed to work with non-Trijicon sights that have the RMR footprint. The way FN has designed the optics plate for the 509 Tactical is rather unusual to us, it consists of a MIM or cast steel plate with lugs for the RMR, and a larger plastic piece sans any lugs or means to prevent the sight from moving laterally.

Factory FN 509 Tactical sights remain compatible with OPF-FN509T, RMR and provide lower 1/3 co-witnessing.

OPF-FN509T, RMR includes the adapter plate, 2 6-40 x 1/2 T10 screws (same spec as the plates/screws packet included in the 509 Tactical, the FN supplied screws also work on OPF-509T, RMR plate), a packet of VC-3 thread locker, and a T10 key. A proper torque wrench is required to impart the correct torque value to the mounting screws.

  • Torque value for the 6-40 x 1/2 T10 screws is 12 to 13 in lbs.
  • Proudly designed and made in the USA.

Additional information

Weight 2.05 lbs
Height

0.31''

Make

FN

Fits / Used For

Trijicon RMR, Trijicon SRO

Weight

1.3 lbs

Model

509T

Color

Black

Make/Model

FN, 509T

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.