FN 509 Compact Tactical 9mm w/ Vortex Viper Red Dot Sight

The FN 509 Compact Tactical delivers precision-engineered performance in a suppressor-ready platform designed for serious applications. This optic-ready pistol combines FN's military-proven reliability with modern features that meet the demands of competitive shooters and tactical professionals.

What Makes This Different

The 509CT stands apart with its factory-installed Vortex Viper red dot sight and threaded barrel configuration. While most compact pistols require aftermarket modifications for optics and suppressors, this model arrives ready for both applications. The PVD-coated slide resists corrosion better than standard finishes, maintaining functionality in harsh conditions where other pistols show wear.

Key Features

• Factory-mounted Vortex Viper red dot sight with co-witness capability
• 4.32-inch threaded barrel (1/2x28 TPI) ready for suppressors or compensators
• Dual magazine capacity: 12-round flush fit and 24-round extended magazine
• Ambidextrous slide stop and magazine release for left and right-handed shooters
• MIL-STD-1913 Picatinny rail accommodates lights and lasers
• Optic-cut slide with serrations for positive manipulation
• Black PVD coating provides superior corrosion resistance

The 509CT maintains consistent accuracy across various ammunition weights, with the red dot sight enabling faster target acquisition than traditional iron sights. Law enforcement agencies report reliable function through thousands of rounds without maintenance issues. The polymer frame absorbs recoil effectively while the steel slide provides the mass needed for consistent cycling with both supersonic and subsonic loads.

Technical Specs

• Caliber: 9mm Luger
• Barrel Length: 4.32 inches, threaded 1/2x28 TPI
• Overall Length: 7.4 inches
• Height: 5.5 inches (with optic)
• Width: 1.35 inches
• Weight: Approximately 28.9 oz (loaded)
• Frame: Reinforced polymer with Picatinny rail
• Slide: Steel with black PVD coating
• Magazine Capacity: 12+1 (compact), 24+1 (extended)
• Sight: Vortex Viper red dot (factory installed)
• Controls: Ambidextrous slide stop and magazine release
• Country of Origin: USA

The 509CT eliminates the guesswork and additional costs associated with aftermarket modifications. Professional users gain immediate access to a suppressor-ready, optic-equipped platform that maintains FN's reputation for reliability under demanding conditions.