Introducing the FN 509 MRD full-size pistol, the latest addition to the FN 509 series, designed for users seeking a robust duty-style pistol for personal or home defense. Chambered in 9mm, it features a 4.50 inches cold hammer-forged barrel crafted from FN's high-grade stainless steel, originally used in machine guns. The barrel includes the signature FN 509 recessed target crown, safeguarding rifling for consistent accuracy and longevity. built with a full-sized slide and frame, the FN 509 MRD ensures a secure grip and reduced recoil, benefiting from increased slide weight and length. This model complements the FN 509 series, which now includes Compact, Midsize, Standard and full-sized options, catering to a wide range of preferences and needs.