Complimenting the FN 509 Series is the FN 509 MRD fullsize pistol equipped with the company's patented Low-Profile Optics-Mounting System to users who want a full-sized duty-style pistol for personal or home defense. The pistol is chambered in 9mm and features a 4.5-inch cold hammer-forged barrel cut from the company's proprietary machine gun-grade stainless steel. The barrel features the FN 509-signature recessed target crown to protect rifling, maintaining accuracy and performance throughout the lifespan of the pistol. The full-sized slide and frame offer a secure grip and reduced recoil thanks to added weight and length of the slide.

• FN Low-Profile Optics Mounting System
• Aggressive slide serrations for positive manipulation
• External extractor and loaded chamber indicator
• 4.5-in. cold hammer-forged stainless steel
• Enhanced grip texture which enables faster follow-up shots in all conditions
• Interchangeable backstraps
• MIL-STD-1913 accessory mounting rail
• Fully ambidextrous slide stop lever and magazine release
• Includes FN Soft Case, Optics mounting system, two backstraps and (2) 10 Round magazines

FN America 509 MRD, Striker Fired, Semi-automatic, Polymer Framed Pistol, Full Size, 9MM, 4.5" Barrel, Matte Finish, Black, Optics Ready Slide, Suppressor Height Adjustable Sights, 10 Rounds, 2 Magazines 66-100718