FN 509 Midsize MRD 9mm FDE Optics-Ready Pistol – 4″ Barrel, 10rd, NMS

Elevate your everyday carry with the FN 509 Midsize MRD in Flat Dark Earth (FDE) — a purpose-built, optics-ready 9mm pistol engineered for concealed carry performance without compromise. Featuring FN’s Low Profile Optics Mounting System, this pistol supports direct mounting of more than 10 different miniature red dot sights right out of the box, giving you a versatile, future-proof platform tailored to your preferred optic.

Built around a 4-inch barrel and mid-sized frame, the FN 509 Midsize MRD strikes the ideal balance between compact carry dimensions and shootable size. It ships with two 10-round magazines and is compatible with higher-capacity FN 509 magazines when used with the included sleeve — so your setup can scale with your needs.

FN refined every detail of the 509 Midsize MRD to improve real-world performance. Enhanced grip texturing on both included backstraps provides better recoil management and a more secure hold, while the redesigned flat-faced trigger delivers a more consistent, controllable press and a cleaner break shot after shot. Improved controls throughout aid in smooth, confident manipulation under any conditions.

This model is the No Manual Safety (NMS) configuration, offering a streamlined carry experience trusted by professionals and responsible civilians alike.

**Key Features:**
– Caliber: 9mm Luger
– Barrel Length: 4 inches
– Frame Size: Midsize
– Finish: Flat Dark Earth (FDE)
– Optics Ready: FN Low Profile Optics Mounting System (10+ compatible MRDs)
– Magazines Included: Two 10-round magazines
– Compatible with higher-capacity FN 509 magazines (sleeve required)
– Flat-faced trigger for improved control and break
– Dual backstraps with enhanced texturing
– Manual Safety: None (NMS)

Order the FN 509 Midsize MRD FDE online today at VanTon Arms and enjoy competitive pricing, fast nationwide shipping, and access to hard-to-find FN inventory — all backed by our commitment to getting the right firearm into your hands.