Best Red Dot for FN 509 Tactical & Compact – For Duty & Carry

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FN 509 Tactical is an upgrade to its original 509 pistol, now it’s optic ready right out of the box. In this guide, let’s check out some of the best red dot for FN 509 Tactical & for the Compact CCW models on the market.

Some are great for range use and some are great for a carry optic.

The Trijicon RMR, but now new optics like the Holosun 507K, 509T & Trijicon SRO are making optics pairing a lot more fun!

Available in full size and compact size. Whether you’re using it for duty carry or for competition, shooting the gun with RDS is fun.

Let’s check it out…


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Best Red Dot Sights for FN 509 Tactical & Compact

shot show 2020 fn 509 optics
Referenced ShotShow

Most popular miniature red dots will work on the new FN509 tactical slide including the Trijicon RMR and Holosun 507C

Below I have posted Amazon link to some of the popular ones with a great price, also be sure to check out the most durable miniature tactical red dot optics under $400

PREVIEWPRODUCTvidFEATURESCHECK ON AMAZONCHECK ON OPTICSPLANET
ULTIMATE DURABILITY & CARRY OPTIC

HOLOSUN HS508T (TITANIUM)

CARRY VERSION: HS507K 

Best Use For: Competition, Tactical & Conceal 

  • Features:2 MOA dot (Red/Green), Motion activated, Fully multi-coated lens, Grade 5 Titanuim housing, CR2032 Battery, 1 MOA/click adjustment
  • Benefits:Brand NEW lightweight for FN509 handgun, Fast on target with wide field of view, Solar + battery power providing ~100K hours, 2 MOA dot great for close & medium range fast action shooting
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FASTEST TGT ACQUISITION & ULTIMATE DURABILITY 

TRIJICON SRO (2.5 MOA)

Best Use For: Range, Competition & Tactical

Fn 509 tactical trijicon rmr gif
  • Features:2.5 MOA dot, 7075 T6 Aluminum housing, Same as RMR mount base, 1 MOA / Click, Top loading CR2032 battery
  • Benefits:Large FOV for faster TGT acquisition & follow-up shots, Slick top loading battery design without sight removal for battery swap
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BEST FOR COMPETITION

LEUPOLD DELTAPOINT PRO

Best Use For: Tactical & Range

  • Features:2.5 MOA dot, Anti-reflective lens,  CR2032 Battery, 1 MOA/click adjustment, Battery saving motion sensor
  • Benefits:Wide & Tall lens for fast TGT acquisition, Perfect for competition, Tool-less top loading battery access, Rugged for home defense, hunting & tactical use.
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BEST LIGHTWEIGHT/WIDE FOV RDS

VORTEX OPTICS VENOM

  • Features:6 MOA dot, 6061 T6 Aluminum housing, 10 brightness settings, 1 MOA / Click, Top loading CR1632 battery
  • Benefits:Large FOV for a micro optic, Works on rifle & shotgun as backup optic, Fast TGT acquisition for speed and accuracy, Slick top loading battery design without sight removal for battery swap
CHECK ON AMAZONCHECK ON OPTICSPLANET

Didn’t find what you were looking for? please check out the other pistol red dot sights here


FN 509 Tactical Optics Compatibility

The Low Profile Optics Mounting System is compatible with almost all micro red dot sights on the market. The included package contains mounting plates and screws for some of the most popular optics such as:

  • Vortex Viper, Razor, Venom
  • Docter Optic
  • Trijicon RMR, SRO
  • C-More STS2
  • Burris
  • Leupold DeltaPoint Pro

Price

Average $ 700-900 right out of the box, you get mounting plates and screws in a sealed bag that allows you to mount any pistol optics on the market. Follow the detail optic mounting instruction, and you will know what to do.

Image Referenced @chattanoogatrev

Unique Optic Mounting System

509 Tactical Slide optics mounting system

The FN 509 slide milling is NOT required. It’s ready to go!

For the original FN 509, people had to mill their slides. Now FN is making it optic-ready right out of the factory.

Slide milling is still a trending market, I don’t see it going away anytime soon because they offer more than just cutting slides, usually other fancy customization as well.

The most interesting part of the gun is the little O-ring that’s on the slide. They use O-Ring to prevent the mount from getting lose or need for thread locker.

When it’s placed under the adaptor plate, and a spacer plate makes the optic stay in line with the slide without gaps.

FN 509 Slide Milling No Longer Required

In the past, 509 Owners will send in their slides to milling companies to get it milled for a red dot. However, that can be expensive including the shipping.

That’s how people usually do it. The problem they were facing was they can only custom mill the slide for one particular red dot optic.

Skip The Wait Time & Buy Optic Ready FN509

Referenced FN

For those of you who want an optic-ready handgun and you’re not interested in paying for milling, shipping, or waiting around for 10+ weeks, then buying a gun like this is worth the money.

On average buying a gun and get it milled cost almost about $700-900, or you can just get this gun, and it’s ready to go.

If this gun gets popularity, then I think FN will release a 40SW, 45 or even a long slide version.

 Suppressor Height Night Sights

fn 509 tactical tan with surefire xh45 and trijicon rmr and suppressor
Image Referenced @sopmod.photog

The purpose of the suppressor height night sights is so that you can aim and still see the whole sight picture.  When aiming down the sight on the FN 509 Tactical, there is nothing special. It’s just like any other suppressor height night sight out there.


Wrap up

Trijicon RMR / SRO still is the best duty grade MRD optic for the FN 509 Tactical for home defense and concealed carry because it’s durable and it has a great track record.

Whether you’re doing concealed carry or shooting on the range, you can count on the Trijicon. If you want to move down a model be sure to check out our miniature red dot sights under $400 here.

This gun looks fantastic with tons of custom features, and it’s honestly the best optic ready pistol released in 2018 until something else better come along.

If you’re interested in getting an optic ready pistol, the FN509 tactical will give you what you want right off the bat without any hassle.

Sverre B

A prior military-civilian employee in government contracting 13 years of experience in 3D Printing and manufacturing. 6 years of experience with firearm tooling and hunting