FN 509C Compact Tactical | 9mm | 4.32″ FDE | 12/24rd | 66100780

The FN 509C Compact Tactical is an optics-ready compact 9mm handgun built on the FN 509 platform with a Flat Dark Earth finish and a 4.32″ cold hammer-forged threaded barrel. It features the FN Low-Profile Optics Mounting System and fixed 3-dot night sights, and ships with a combination of compact and extended magazines for range and carry flexibility. Suggested optic: Trijicon RMR, which is compatible with the FN low-profile mounting footprint and is commonly available for under $1,000.

Intended uses include everyday carry (EDC) and range training/competitive practice where capacity and an optics-ready slide are advantageous.

Product Specifications

• The UPC is 845737012656.
• The caliber is 9mm Luger.
• The barrel length is 4.32 inches.
• The overall length is 7.40 inches.
• The frame finish is Flat Dark Earth.
• The frame material is Polymer.
• The slide is described as Optic Cut/Serrated Flat Dark Earth Steel.
• The barrel type is Threaded with an NFA thread pattern of 1/2 x 28.
• The optic footprint is listed as Multiple.
• The package includes 1 x 12-round and 1 x 24-round magazines.
• The product lists a maximum capacity of 24 rounds.
• The included sights are Fixed 3-dot night sights.
• The pistol includes a MIL-STD-1913 accessory rail (Picatinny).
• The controls include ambidextrous slide stop lever and ambidextrous magazine release.

Compact, optics-ready, and configured for modular use, this FN 509C Compact Tactical combines a threaded barrel and low-profile optics mounting system with FN’s standard ergonomics. The package balances carry concealability with optional extended capacity for range sessions or specialty applications.

Owners commonly praise the platform’s optics-ready slide and compact ergonomics for carry and range use.

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