FN 509M Tactical 9mm 4.5″ Threaded — 5x10rd Mags

Description

The FN 509M Midsize Tactical is a versatile, optics-ready pistol configured for everyday carry, duty, and controlled-range use. It features a threaded, cold hammer-forged barrel and a factory-milled slide that accepts most micro red dot sights. The design emphasizes shootability with balanced proportions and a smooth, striker-fired trigger.

Key Specifications

• The caliber is 9mm.
• The barrel measures 4.5 inches and is cold hammer-forged with a recessed target crown.
• The action is semi-automatic / striker-fired.
• The frame material is polymer with enhanced grip texture and interchangeable backstraps.
• The finish is a durable PVD coating on the slide.
• The pistol ships with five 10-round magazines included.
• It is optics-ready with FN’s Low-Profile Optics-Mounting System for most micro red dot footprints.
• The barrel is 1/2 x 28 threaded and includes an O-ring retention thread cap.
• Standard sights are suppressor-height tritium night sights.
• The listed weight in supplied product data is 27.9 oz.

The 509M Midsize Tactical combines a proven ergonomics package with features intended for practical use: threaded barrel for suppressor compatibility, an optics-ready milled slide, and a robust accessory package. Its balanced handling and serviceable controls make it suitable for daily carry choices where mid-size performance and real-world functionality are priorities.