The FN America FN 509 Tactical is a full-size 9mm striker-fired pistol designed for duty, defensive, and suppressor-ready applications. Its 4.5-inch threaded barrel, suppressor-height night sights, and Low Profile Optics Mounting System provide a versatile foundation for modern configurations. The polymer frame features interchangeable backstraps for a more personalized grip, while the 1913 accessory rail supports compatible lights and lasers. This Flat Dark Earth model includes five 10-round magazines and ambidextrous slide and magazine controls.

Key features

• 4.5-inch threaded barrel with a 1/2x28 thread pattern for suppressor-compatible setups
• Suppressor-height night sights provide an elevated sight picture and low-light visibility
• Low Profile Optics Mounting System supports the installation of a compatible red dot sight
• Striker-fired semi-automatic action with an integrated trigger safety
• Interchangeable polymer backstraps help tailor the grip to the shooter's hand
• Ambidextrous slide stop lever and magazine release accommodate left- and right-handed operationciteturn0search0

The FN 509 Tactical combines optics compatibility, suppressor-ready features, and adaptable controls in a full-size 9mm pistol.