I have narrowed down the Best FN 509 light that I liked based on beam performance, durability, control ergonomics and value for money. 

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  • Best Overall
  • Best Durability
  • Best Compact Size
  • Best Battery Life
  • Best Modularity

Streamlight TLR 1 HL - Best Overall

best light for fn 509 tactical

Why TLR 1 HL for FN 509 Tactical Flashlight ? - It features more lumen intensity from the previous TLR 1 model. The Streamlight TLR 1 HL is lighter and by far has the EASIEST toggle switch to operate the light for home defense and professional use. 

Easy Toggle Switch - By far the most user-friendly control switch for two-hand or one-hand operation without the need to hard press the switch to activate the light

Simple Strobe Mode- Double tap for strobe. No mode switching or complicated button combo press!

Best Fit - By far the best mount fit on the FN509 rail while the toggle switches are reachable

Replaceable Lens Bezel - Repair the front lens due without having to replace the whole unit to saves money and train force on force with a peace of mind

Fits FN 509 LS Edge very well


  • 1000 Lumens
  • 15000 Candela
  • 2 CR123A Batteries
  • 4.18 oz
  • 3.39 in
  • IPX7

Surefire XH30 - Best Durability

fn 509 light

Slight Trim Required For Proper Fit

Why we picked the XH30 - XH30 is basically the next-generation Surefire X300 Ultra.

The overall quality and durability are superior for anyone looking for one of the best FN 509 tactical light choices with proven field performance and can last for duty use.

Multi-Lumen Intensities - Choose between 1,000 blinding lumens or 300 lumens for low profile applications

Widest Flood Beam - Intense bright light covers anything close up in the dark from 9 o'clock to 3 o'clock.

Disorient Threats - Blind close up threats with intense bright flashing strobe

Multi-Lumen Light Intensity - Choose between 1,000 blinding lumens or 300 lumens for low profile applications

Slide Always In Battery - Light bezel sticks out pass the muzzle prevents the slide from getting out of battery when muzzle is pressed against the target

NOTE: The XH30 will not fit holsters made for Surefire X300U due to the difference in the front lens

Read Surefire XH30 Review Here


  • 1000 Lumens
  • 11300 Candela
  • TIR Lens - Super Wide
  • 2 CR123A Batteries
  • 4.8 oz
  • 3.7 in
  • IPX7

Also Try Enlarged PLHster ARC Switches For Better Finger Reach

LAPG SlideRail XWL - Best For The Money

fn 509 light

Why Give LAPG XWL A Try? - The price tag might make you doubt it, but it's by far the best Streamlight TLR 1 pistol light alternative with similar features but with a better throw performance.

Fits TLR 1 Holsters - Use any TLR 1 or TLR 1 HL compatible light-bearing holsters!

Further Beam Distance - Better low light positive ID with a concentrated throw and wider spill than Streamlight TLR 1

Huge Money Saver - For only $70, this is basically a Streamlight TLR 1 at 1/2 the cost

Strobe Mode - Check out the Strobe version here

Read LAPG XWL Review


  • 800 Lumens
  • 10800 Candela
  • Wide Spill + Tight Hot Spot
  • 2 CR123A Batteries
  • 4.18 oz
  • 3.39 in
  • IPX7

Streamlight TLR 7A - Best Compact Size

fn 509 tactical flashlight

Streamlight TLR 7A Flex is the best compact size handgun light for FN 509 mid size models and full size models with upgraded control ergonomics.

The TLR 7A flush fit perfectly on a full size FN 509 pistol. It's super light and compact, which takes only 1 CR123A battery (50,000 hours) that can produce up to 500 lumens & 5000 candela with its C4 LED technology.

Streamlight's TIR Optic produces a concentrated beam with optimum peripheral illumination within 30 - 40 yards.

fn 509 tlr7

Activation switches are ambidextrous from both sides, the user can activate the light simply by pushing the button.

We highly recommend this product for its size, performance and price, and it's probably the best for FN 509 pistols for the money.

Read Streamlight TLR 7A Review

Olight PL Pro - Best Rechargeable Battery

fn 509 tactical light

The Olight PL Pro is a hot selling USB rechargeable pistol weapon light. 

Increased Lumen & Candela - The PL Pro has about 1500 lumens and 19600 candela to positively ID targets further in the dark.


  • 1325 Lumens
  • 16900 Candela
  • TIR Lens
  • 2 CR123A Batteries
  • 4.55 oz
  • 3.3 in
  • IPX4

Olight Valkyrie Turbo - Best Long Range Illumination

Why Try The Valkyrie Turbo? - The new 2022 Olight Valkyrie Turbo is an impressive thrower for long range illuminations in the dark. It's a LEP (Laser Excited Phosphor) laser alike white beam with a PID range up to 500 to 540 meters.

Constant On & Strobe - Activation switch is the same as PL Pro

olight valkyrie turbo mid range

Extreme Long Beam Distance For Positive Identification - See clearly different size targets in the dark as far as 500 meters. It's like having a rifle light on a pistol like the MODLITE OKW

Auto Heat Protection - Lumen intensity will drop from 250 lumens after 4 mins, then transition into 50 lumens for 180 mins


  • 250 Lumens
  • 70225 Candela
  • 2 CR123A Batteries
  • 4.7 oz
  • 3.55 in
  • IPX6

Read Olight Valkyrie Turbo Review