Trigger Group PartsApex Tactical Specialties IncSold by Brownells

Apex Tactical Specialties Inc

Fn 509 Action Enhancement Trigger Kit

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Drop-in Replacement

For the factory trigger, trigger

Designed Deliver

Lighter, smoother trigger pull

Reduces Pre-travel

For a shorter overall pull

Shorter Reset

For faster follow-up shots

Machined Aluminum

Flat-faced trigger design

$152.00
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SKU: 100032665

Overview

For FN 509 owners looking to refine the pistol’s trigger feel, this Apex Tactical kit is designed as a drop-in replacement for the factory trigger, trigger bar, and sear. It is intended to deliver a lighter, smoother pull with less pre-travel, a shorter overall pull length, and a shorter reset, while not altering the function of the factory safeties. The machined aluminum flat-faced trigger gives the kit a purpose-built feel for shooters who want a more responsive setup without sending the pistol out for a shop trigger job. Installation is aimed at users who are comfortable with tools and can follow instructions carefully.

Why Hunters Choose the Apex Tactical Specialties Inc

Lighter, Smoother

Trigger pull than the factory

Reduces Pre-travel

For a cleaner trigger feel

Shorter Overall

Pull length

Shorter Reset

For faster follow-up shots

Drop-in Replacement

For factory trigger, trigger bar,

Key Features

  • Drop-in replacement for the factory trigger, trigger bar, and sear.
  • Designed to deliver a lighter, smoother trigger pull.
  • Reduces pre-travel for a shorter overall pull length.
  • Provides a shorter reset for faster follow-up shots.
  • Machined aluminum flat-faced trigger design.
  • Does not alter the function of factory safeties.

Best Used For

  • FN 509 owners seeking a lighter, smoother trigger pull for range use and training
  • Handy DIY users comfortable following instructions on a drop-in trigger upgrade
  • Shooters wanting less pre-travel and a shorter overall pull length
  • Owners looking to keep factory safeties unchanged while improving trigger feel

Specifications

CompatibilityFN 509
Diy FriendlyYes
Included ComponentsFactory trigger, trigger bar, and sear replacement
InstallationDrop-in replacement
MaterialMachined aluminum
Pre TravelLess pre-travel
Pull LengthShorter overall pull length
ResetShorter reset
Safety ImpactWill not alter function of factory safeties
Trigger PullLighter, smoother trigger pull
Trigger TypeFlat-faced

Pros

  • Lighter, smoother trigger pull than the factory setup
  • Reduces pre-travel for a cleaner trigger feel
  • Shorter overall pull length
  • Shorter reset for faster follow-up shots
  • Drop-in replacement for factory trigger, trigger bar, and sear
  • Does not alter function of factory safeties

Considerations & Trade-offs

  • Installation is intended for owners who are comfortable with tools and able to follow instructions; it is not a no-effort upgrade for every user.
  • This kit changes the factory trigger, trigger bar, and sear, so the feel of the pistol will differ from stock and should be evaluated carefully before use.
  • The description emphasizes a lighter, shorter trigger pull and reset, but it does not provide detailed specifications for those changes, so expectations should remain general.
  • It will not alter the function of the factory safeties, which is reassuring, but it also means the kit is focused on trigger feel rather than broader control changes.

Suggested Comparisons

  • Pistol trigger upgrades
  • Replacement trigger kits
  • FN 509 accessories
  • Handgun performance parts

Suggested Accessories

  • Pistol cleaning kit
  • Gun vise
  • Trigger pull gauge
  • Armorer's tool kit

Frequently Asked Questions

What does the FN 509 Action Enhancement Trigger Kit replace?

It is a drop-in replacement for the factory trigger, trigger bar, and sear on the FN 509.

What changes does this kit make to the trigger pull?

According to the product description, it provides a lighter, smoother trigger pull with less pre-travel, a shorter overall pull length, and a shorter reset.

Will this kit alter the factory safeties on the FN 509?

No. The description states that it will not alter the function of the factory safeties.

Is this something an FN 509 owner can install at home?

Yes, the description says it is an easy-to-install replacement and that owners who are handy with tools and comfortable following instructions can do the job themselves.

What material is the trigger face made from?

The description identifies it as a machined aluminum flat-faced trigger.