The FN 509 Midsize MRD 9mm 4in 15rd FDE Optic Ready pistol, model number 66100741, is a remarkable addition to the FN lineup, designed to enhance your everyday carry experience with its advanced features and superior performance. This optic-ready pistol is engineered with the FN Low Profile Optics Mounting System, allowing you to directly mount over 10 different miniature red dot optics, making it a versatile choice for those who prioritize precision and adaptability in a concealed carry pistol. The FN 509 Midsize MRD boasts a four-inch black recessed crown barrel, ensuring accuracy and reliability, while the flat dark earth PVD optic-ready serrated steel slide adds a sleek, tactical aesthetic. Its flat dark earth polymer frame is equipped with a Picatinny rail, offering additional customization options for accessories. With a standard 15-round capacity, this 9mm pistol is also compatible with larger capacity FN 509 magazines when used with a sleeve, providing flexibility for various shooting scenarios. The ambidextrous controls make it an ideal choice for both left and right-handed shooters, enhancing ease of use and accessibility. The improved texturing on the two included backstraps ensures better recoil management, while the new flatter-faced trigger allows for a more controllable trigger press and cleaner break, contributing to a more precise shooting experience. Whether you're a seasoned shooter or new to concealed carry, the FN 509 Midsize MRD offers a perfect balance of size, capacity, and performance, making it an excellent choice for personal defense and everyday carry. With its combination of innovative features and robust design, this 9mm pistol stands out as a reliable and efficient firearm, ready to meet the demands of any situation.