The FN 509 Midsize MRD 9mm is a semi-automatic pistol from FN. This configuration is built around Striker Fired, a 4-inch barrel, and a listed capacity of 15 + 1.

The action is Striker Fired. Barrel length is 4 inches. Capacity is listed as 15 + 1, meaning a 15-round magazine with one round in the chamber.

The finish is flat dark earth, and the finish color is applied finish. The sights are black co-witness iron sights. The frame is Polymer Frame, and the grip specification is FDE Polymer.

The magazine specification is two 15-round magazines. Listed features are an interchangeable backstraps, a fn optics mounting system, and a midsize frame. The safety specification is trigger safety.

Overall length is 7.4 inches, and weight is 26.5 oz. This configuration is in the 509 Series, and the manufacturer model number is 66-100741. The listed case is fn soft case.

Because this listing is a firearm, Send It Guns completes the sale through a licensed dealer transfer. The UPC for this exact configuration is 845737011567. The store SKU is FN66-100741.

Use 4 inches when you compare size with other FN semi-automatic pistols, because barrel length is one of the fields that changes between similar model numbers. The plus-one capacity figure is a magazine count plus a chambered round, which is different from a listing that quotes the magazine alone. The modular or optic-mount feature means the configuration is set up to accept an optic. An optic is not listed as included, so the iron sights remain the sighting equipment on this listing.

The flat dark earth finish is the surface treatment to match if you are comparing color or coating with another FN configuration of the same model. The model name to compare is FN 509 Midsize MRD. A close FN model can differ in finish, capacity, barrel, sights, or included parts, and those differences are the reason this page stays with this configuration.

Compare the FN 509 Midsize MRD 9mm with more Handguns, or browse the full Send It Guns catalog. See the official FN site.