A factory FN 17-round 9mm magazine in flat dark earth for the FN 509 Compact. Running the higher-capacity magazine in the compact frame gives you a full firing grip when you need it, and it is the standard approach for carrying a compact pistol with more capable spares on the belt.

FN builds these to the same specification as the magazines shipped with the pistol, so feed lips, spring rate and follower geometry are correct from the start. Magazines are a wear item and the cheapest insurance in the safe, so having several known-good spares is always worth it.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.