FN 509C MRD NMS 9mm, BlackDescription The FN 509 MRD LE delivers more precision and versatility than any other duty rated handgun. Building on the proven FN 509 lineup, the exclusive upgrades for law enforcement place every advantage in officers hands, with unmatched accuracy from a striker fired handgun. Making up the new high performance package is a conical striker, flat faced duty rated trigger and the FN Low Profile Optics Mounting System , for fast sight acquisition and