FN 509 Tactical 9mm 4.5in Threaded

The FN 509 Tactical is a full-size 9mm pistol built for range, duty, and suppressed-use configurations. It is intended for users who require an optics-capable platform with suppressor compatibility and night-sight capability.

The firearm combines a matte black polymer frame with a steel slide and a cold hammer-forged stainless-steel barrel. The slide is optic-ready via FN’s Low-Profile Optics Mounting System and features serrations and a sight-protecting slide cap; the frame includes an accessory rail and interchangeable backstraps for fit and ergonomics.

Key Specifications

• The caliber is 9mm.
• The magazine capacity is 10 + 1.
• The barrel length is 4.50 inches.
• The barrel is constructed of stainless steel and is threaded 1/2×28.
• The overall length is 7.90 inches.
• The unloaded weight is 27.90 oz.
• The frame material is polymer with a matte black finish.
• The slide is optic-ready via the FN Low-Profile Optics Mounting System.
• The sights are suppressor-height night sights for co-witnessing with MRD optics.
• The operating controls include a fully ambidextrous slide stop lever and magazine release.

This listing reflects manufacturer features and specifications for the FN 509 Tactical 9mm. Review the key specifications above for details on caliber performance and threaded-barrel compatibility with common 9mm suppressors.

Buy the FN America / FN Herstal 509 Tactical 9mm online today to get an optics-ready, threaded-barrel pistol suitable for range and duty use.