The FN 509 Midsize Tactical delivers enhanced versatility with its threaded barrel and optic-ready slide configuration. This striker-fired pistol bridges the gap between compact carry and full-size performance, offering shooters a platform optimized for both suppressed shooting and red dot optics integration.
What Makes This Different
The 509 Midsize Tactical stands apart with its factory-threaded 4.5-inch barrel featuring a target crown for improved accuracy. Unlike standard models, this variant includes front and rear slide serrations for enhanced manipulation under stress. The optic-ready slide accepts popular red dot sights without requiring additional machining, while the ambidextrous controls accommodate both left and right-handed shooters equally.Key Features
- 4.5-inch cold hammer-forged threaded barrel with 1/2x28 TPI threading
- Optic-ready slide cut compatible with most micro red dot sights
- Ambidextrous slide stop levers and magazine release
- Full-length Picatinny accessory rail for lights and lasers
- Enhanced grip texture with interchangeable backstraps
- Low-profile 3-dot night sights co-witness with optics
- Striker-fired action with consistent 5.5-7 pound trigger pull
Technical Specs
- Caliber: 9mm Luger
- Capacity: 10+1 rounds (15-round magazines available separately)
- Barrel Length: 4.5 inches with target crown and threading
- Overall Length: 7.4 inches
- Height: 5.5 inches
- Width: 1.35 inches
- Weight: 27.9 ounces unloaded
- Frame Material: Glass-filled polymer with steel chassis
- Slide Material: Stainless steel with matte black finish
- Sights: 3-dot luminescent night sights
- Thread Pitch: 1/2x28 TPI
- Country of Origin: USA
