FN America FN 509 Tactical 9mm Pistol 4.5" Threaded Barrel - 24 Rd

FN America FN 509 Tactical 9mm Pistol 4.5" Threaded Barrel - 24 Rd

Born from FN’s submission to the U.S. Army’s Modular Handgun Trials, the FN 509® Tactical is a battle-proven evolution of the FN 509 platform — refined for superior performance in real-world conditions. This striker-fired 9mm pistol features FN’s patented Low-Profile Optics Mounting System™, allowing seamless integration of over ten MRD optics without slide milling. Suppressor-height Trijicon night sights co-witness perfectly, while the 4.5" cold hammer-forged barrel with ½” x 28 threads is ready for most 9mm suppressors. With enhanced grip texture, interchangeable backstraps, and extended 24-round magazines, the FN 509 Tactical delivers unmatched versatility, reliability, and firepower in a compact, carry-friendly package.

Low-Profile Optics Mounting System™
Accepts over ten MRD optics with co-witness capability and no slide milling required.

Suppressor-Ready Barrel
½” x 28 threaded cold hammer-forged barrel with target crown and O-ring thread cap.

Suppressor-Height Night Sights
Trijicon 3-dot green Tritium sights for day/night visibility and optic co-witnessing.

Slide Cap with Sight Wings
Protects iron sight alignment and enables emergency racking against surfaces.

Enhanced Grip Texture
Improves control and follow-up accuracy in all conditions.

Fully Ambidextrous Controls
Slide stop lever and magazine release for left- or right-handed operation.

High-Capacity Magazines
Includes 17-round and 24-round mags for extended firepower.

MIL-STD-1913 Rail
Mount lights, lasers, and accessories with ease.

Specifications

• Caliber: 9mm
• Operation: Double-action, striker-fired
• Magazine Capacity: 17+1, 24+1
• Weight: 27.9 oz
• Barrel Length: 4.5 inches
• Overall Length: 7.9 inches
• Twist Rate: 1:10" RH
• Height: 5.75 inches
• Width: 1.35 inches
• Trigger Pull: 5.5 – 7.7 lbs
• Sight Radius: 5.79 inches
• Barrel Material: Cold hammer-forged stainless steel
• Frame Material: Polymer with steel rails
• Slide Material: Stainless steel
• Finish: Matte black
• Optic Compatibility: Shield RMS, Trijicon RMR, and more
• Accessory Rail: MIL-STD-1913
• Included Accessories:
  • Two interchangeable backstraps
  • One 17-round magazine
  • One 24-round magazine
  • FN logo soft pistol case
  • Owner’s manual
  • Locking device