Item #:
845737012793
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845737012793
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FN 509 Compact 9mm Pistol 3.7" Barrel 12+1/15+1 Black

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The FN 509 Compact delivers full-size performance in a concealed carry package, featuring a 3.7-inch barrel and dual magazine capacity options. This striker-fired pistol combines FN's military-grade manufacturing with civilian practicality for both duty and personal protection applications.

What Makes This Different

Unlike standard compact pistols that sacrifice accuracy for size, the FN 509 Compact maintains a full 3.7-inch barrel length while reducing overall frame dimensions. The cold hammer-forged barrel delivers match-grade accuracy typically found in full-size competition pistols. FN's proprietary surface treatments provide 75% greater corrosion resistance compared to standard Melonite finishes, extending service life in harsh environments.

Key Features

  • Cold hammer-forged 3.7-inch barrel with 1:10 twist rate for enhanced accuracy
  • Dual magazine capacity: 12-round flush-fit and 15-round extended magazines included
  • MIL-STD-1913 Picatinny rail accommodates lights and laser accessories
  • Low-profile, snag-free sights with luminescent front sight insert
  • Ambidextrous controls including slide stop and magazine release
  • Textured polymer grip with interchangeable backstraps for custom fit
  • No manual safety design with trigger safety and firing pin block
Field testing demonstrates consistent 2.5-inch groups at 25 yards with quality ammunition. The 509 Compact functions reliably with both standard pressure and +P loads, making it suitable for law enforcement duty carry and civilian concealed carry. The matte black finish resists wear from holster draw cycles while maintaining a professional appearance.

Technical Specs

  • Caliber: 9mm Luger
  • Barrel Length: 3.7 inches
  • Overall Length: 7.0 inches
  • Height: 5.5 inches
  • Width: 1.35 inches
  • Weight: 25.5 ounces (unloaded)
  • Frame Material: Glass-filled polymer
  • Slide Material: Stainless steel with matte black finish
  • Trigger Pull: 5.5-7.7 pounds
  • Sight Radius: 5.8 inches
  • Magazine Capacity: 12+1 or 15+1 rounds
  • Country of Origin: USA
Professional armorers and competitive shooters consistently rank the FN 509 series among the most reliable striker-fired platforms available. The compact model maintains these performance standards while offering enhanced concealability for everyday carry applications.