The FN 509 MRD pistol in 9mm, built to an LAPD-style configuration (brand part no. 66-101287LE), ships with three 17-round magazines and a serrated black steel slide cut for a direct-mount red dot optic. FN America equips the pistol with cowitness-height raised tritium night sights, keeping iron sights usable alongside a mounted optic, and the 4-inch barrel pairs with a trigger safety for reliable, drop-safe carry. Among duty-configured semi-auto handguns, this FN 509 MRD favors shooters who want a full three-magazine duty package.

Key Specifications

• Chambered in 9mm.
• Ships with three 17-round magazines.
• The barrel measures 4 inches.
• The sights are cowitness raised tritium night sights, usable alongside a mounted optic.
• The slide is serrated black steel with an optic cut.
• The action is striker fired.
• The pistol relies on a trigger safety for drop protection.
• The action is semi-automatic, cycling each round via the pistol’s own recoil.
• The overall length is 7.4 inches.

Frequently Asked Questions

How many magazines are included? Three 17-round magazines.

Can this pistol’s iron sights be used with a mounted optic? Yes, the cowitness-height tritium night sights remain usable alongside a red dot.

Buy the FN 509 MRD, LAPD Configuration

A full three-magazine duty package with cowitness night sights is exactly what this FN 509 MRD delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.