The FN 509 Midsize MRD is the sweet spot of FN's 509 family — born from the pistol FN developed for the U.S. Army's Modular Handgun trials, sized for both duty holsters and concealed carry. The 4-inch barrel and midsize frame balance shootability with carryability, and the MRD (Miniature Red Dot) slide features FN's clever optics-mounting system that accepts most popular red dots while co-witnessing with the suppressor-height sights. FN's military manufacturing pedigree shows in the 509's durability testing, which is among the most extensive in the industry.

This firearm ships to your chosen FFL dealer for transfer. Order online from Dawson Defense, an Arizona-owned licensed dealer and importer.