Description
This is a stripped slide for your FN 509 pistol. You supply all of your own internals from your factory FN 509 slide and a barrel. All spaces in the slide accept factory FN components. For optimal performance, all Apex parts for the 509 fit this slide.
Slide Features
- Apex 5.00” Slide for the FN 509 Pistol
- Front and Rear Cocking Serrations
- 2 Options available: Classic or Lightning Bolt Serrations
- Suppressor height black on black sights installed by Apex
- Black PVD Finish
Ported Slide
- Slide ports matching the Apex Ported Barrel for the FN 509 allow the escaping gasses from the barrel ports to reduce muzzle rise
- An Apex ported barrel is required for the ports to work correctly
THIS SLIDE REQUIRES ALL INTERNALS AND A 5” BARREL FOR THE FN 509.
Options for Internals
- Use the factory parts from your present FN slide.
- Contact Apex Customer Service to order a Slide Completion Kit. We will fully assemble the slide for you prior to shipping. These Slide Completion Kits can only be purchased with a slide from Apex and must be installed by Apex.
- Purchase new Factory FN components from Midwestgunworks.com or Brownells.com.
Barrel Options
- Factory Barrel: Customers may use the factory 5” 509 barrel with this slide
- Apex Barrels:
- Apex Direct Drop-In Barrel for FN509 – 5.00 inch (105-073)
- Apex 9mm Drop-In Threaded Barrel for FN 509 – 5.00 inch (105-074) – ideal for suppressor use in high-dust environments
- Apex 9mm Drop-in Ported Barrel for Apex FN 509 Ported Slides – 5.00 inch (Coming Soon)
Optic Mount Options
- ACRO Cut: Slide cut with the appropriate geometry to direct mount optics with the ACRO footprint, including but not limited to: ACRO, MPS, Pandora PB-3, or any optic described to mount to an ACRO rail.
- Check the specifications from your optic manufacturer for the proper torque on your screws.
- If no









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