FN 509 Tactical 9mm Pistol 4.5" Threaded Barrel 17+1 Optic Ready

The FN 509 Tactical delivers enhanced versatility for shooters requiring suppressor compatibility and optic mounting capability in a full-size service pistol. This tactical variant builds upon FN's proven striker-fired platform with threaded barrel integration and factory optic cuts.

What Makes This Different

The 509 Tactical separates itself from standard pistols through its factory-threaded 4.5-inch barrel and optic-ready slide machining. Where most pistols require aftermarket modifications for suppressor use, this model ships ready for direct-thread suppressors or muzzle devices. The stainless steel slide features precise cuts for popular red dot optics without compromising structural integrity.

Key Features

• 4.5-inch cold hammer-forged threaded barrel with 1/2x28 TPI threading
• Optic-ready slide with removable cover plate for red dot mounting
• 17-round flush-fit magazine plus 24-round extended magazine included
• Integrated Picatinny accessory rail for lights and lasers
• Serrated stainless steel slide with enhanced grip surfaces
• Low-profile night sights with white dot front sight
• Textured polymer frame with interchangeable backstraps

The 509 Tactical performs consistently across diverse applications from competitive shooting to duty use. The extended sight radius and threaded barrel configuration enhance accuracy potential, while the robust striker-fired action cycles reliably with both subsonic and supersonic ammunition. Weather-resistant coating protects against corrosion during extended field use.

Technical Specs

• Caliber: 9mm Luger
• Barrel Length: 4.5 inches, threaded 1/2x28 TPI
• Overall Length: 8.2 inches
• Height: 5.5 inches
• Width: 1.35 inches
• Weight: 27.9 oz (unloaded)
• Magazine Capacity: 17+1 standard, 24+1 extended
• Frame Material: Glass-filled polymer
• Slide Material: Stainless steel with matte black finish
• Trigger Pull: Approximately 5.5-7.5 lbs
• Made in USA by FN America

The FN 509 Tactical addresses the growing demand for suppressor-ready pistols without sacrificing reliability or accuracy. Professional users and serious enthusiasts gain immediate access to enhanced capabilities that typically require custom gunsmith work.