The FN 509 Compact Tactical is a versatile 9mm semi-automatic pistol designed for concealed carry, duty use, and users who need both suppressor and optic compatibility. Its compact frame combines a 4.3-inch cold hammer-forged threaded barrel with the FN Low-Profile Optics Mounting System, allowing compatibility with a wide range of miniature red dot sights. Factory night sights provide a clear aiming reference and are designed to co-witness with a mounted optic. The polymer frame includes interchangeable backstraps for a more personalized fit, while the Picatinny accessory rail supports compatible lights and lasers. The pistol includes a compact 12+1 magazine and an extended 24+1 magazine.

Key features

• FN Low-Profile Optics Mounting System accepts a broad range of miniature red dot optics
• 4.3-inch cold hammer-forged threaded barrel supports compatible suppressors and compensators
• Factory night sights provide a visible aiming reference and co-witness with mounted optics
• Interchangeable polymer backstraps help tailor grip size and comfort
• Fully ambidextrous slide stop lever and magazine release support left- and right-handed operation
• Picatinny accessory rail accommodates compatible lights and lasers; two magazines and a soft case are included

The FN 509 Compact Tactical combines compact handling with factory optic and suppressor compatibility for a flexible everyday-carry or tactical setup.