The FN 509 Tactical is a duty-oriented semi-automatic pistol developed from FN's U.S. Army Modular Handgun Trials submission and refined through the FN 509 program. Its 4.5-inch threaded stainless steel barrel features a target crown and thread cap, while suppressor-height night sights provide a clear aiming reference. The FN Low-Profile Optics Mounting System accepts miniature red dot optics and is designed to co-witness with the iron sights. Raised slide wings help protect sight alignment, and the textured slide cap offers an alternative surface for manipulating the slide. The polymer frame includes interchangeable backstraps for a more tailored grip fit.

Key features

• 9mm semi-automatic pistol with 10+1 capacity for duty, range, and defensive applications
• 4.5-inch threaded stainless steel barrel with target crown and thread cap
• Suppressor-height night sights designed to co-witness with compatible miniature red dot optics
• FN Low-Profile Optics Mounting System for mounting a miniature red dot optic
• Raised slide wings help protect the sight system from impact
• Textured slide cap supports alternative slide manipulation techniques

The FN 509 Tactical combines a threaded barrel, night sights, and factory optics compatibility in a versatile duty pistol. It includes two magazines, interchangeable backstraps, and an FN logo soft pistol case.