FN 509M Tactical 9mm 4.5in Threaded Barrel FDE

Description

The FN 509M Tactical is a midsize, optics-ready 9mm handgun designed for multi-role use including everyday carry, duty, and disciplined training. It features a 4.5-inch threaded barrel and suppressor-height sights while maintaining balanced proportions for controllable handling. The pistol is built with an optics-mounting system and fully ambidextrous controls for versatile setup and use.

Key Specifications

• The caliber is 9mm Luger.
• The barrel measures 4.5 inches and is threaded 1/2 x 28 for muzzle device compatibility.
• The barrel is a cold hammer-forged stainless steel component.
• The action is double-action.
• The unloaded weight is 27.9 ounces.
• The overall length is 7.9 inches.
• Ships with five 10-round magazines.
• Features the FN Low-Profile Optics-Mounting System and suppressor-height 3-dot night sights.
• The trigger pull is specified at 4.5–6.7 pounds.
• The frame includes interchangeable backstraps and enhanced grip texture for faster follow-up shots.

Built for shooters who value modularity and dependable function, the FN 509M Tactical pairs a threaded 4.5-inch barrel and optics-ready slide with practical features such as ambidextrous controls, high-visibility followers, and a durable finish. Its combination of controllable weight, suppressor-height sights, and optics compatibility makes it a practical choice for disciplined users seeking a versatile midsize service pistol.