The FN 509 is a striker-fired 9mm Luger pistol with a standard grip and trigger, matte black PVD finish, and 10+1 capacity. Listed overall length is 12 inches. 
 

Key Specifications 

• SKU: 2024014335 
• UPC: 845737011802 
• Brand: FN 
• Model Name: 509 
• MPN: 66100718 
• Caliber: 9MM LUGER 
• Capacity: 10+1 RD 
• Length: 12" 
• Grip: Standard 
• Trigger: Standard 
• Finish: Matte Black PVD 
• Condition: New in Box 
   

Features 

The matte black PVD coating resists wear and corrosion better than standard bluing. The standard grip accommodates most hand sizes without modification, and the trigger is set up for general defensive and range use without a heavy pull weight. The 9mm Luger chambering keeps ammunition costs manageable for regular range practice. The FN 509 is compatible with a range of FN aftermarket accessories and magazines.

The FN 509 in matte black is generally well-regarded. Construction quality is frequently cited as a strength, and the PVD finish gets positive remarks for durability and appearance. Grip feel and ergonomics work well for most shooters, and accuracy at range distances is consistently described as solid. For home defense and concealed carry, owners tend to find the 10+1 capacity acceptable.

Common criticisms include weight -- some find it heavier than preferred for all-day carry compared to lighter options in the class. The trigger pull gets mixed feedback; most find it workable but some prefer a smoother reset. Aftermarket support is more limited than for more established platforms like Glock, which matters to shooters who want extensive customization options.