The FN 509 Tactical 9mm 4.5in 10rd/24rd Matte, model number FN 66100375, is a premier tactical handgun that exemplifies the FN brand's commitment to innovation and performance. This 9mm pistol, finished in a sleek matte black, is designed for both professional and enthusiast shooters who demand reliability and versatility. The FN 509 Tactical is an evolution of the FN 509 family, originally developed for the U.S. Army's Modular Handgun Trials, and it incorporates significant enhancements that elevate its tactical capabilities. At the heart of this firearm is the FN's U.S. Patent No. 10/352654 Low-Profile Optics Mounting System, which allows for seamless integration with over ten commercially-available miniature red dot (MRD) optics. This optic-ready feature ensures co-witnessing with the suppressor-height night sights, providing adaptability for future optics without the need for direct slide milling. The pistol's slide cap, designed for use without an optic, includes raised sight wings to protect iron sight alignment and a textured ramp for efficient slide racking against various surfaces. The FN 509 Tactical boasts a 4.5-inch cold hammer-forged stainless-steel barrel with a target crown and x 28 threads, making it suppressor-ready and compatible with most 9mm suppressors. The integrated O-ring on the thread cap prevents loosening during use, ensuring consistent performance. The firearm's matte black polymer frame is equipped with a Picatinny rail, offering additional customization options for tactical accessories. With magazine capacities of 17 and 24 rounds, the FN 509 Tactical maximizes ammunition availability without compromising on carry convenience, making it an ideal choice for tactical applications and personal defense. The serrated stainless steel slide enhances grip and control, while the overall design reflects FN's dedication to quality and precision. Whether for professional duty or personal protection, the FN 509 Tactical stands out as a robust, adaptable, and high-capacity 9mm pistol that meets the demands of modern shooters.