509c Mrd Compensated 9mm 4.20in 15 + 1 Fde Pistol - Optic Ready & Threaded

The FN 509 Compact MRD Compensated delivers full-size performance in a compact concealed-carry package. Its striker-fired action pairs with a factory auto-indexing compensator to help reduce muzzle flip and support faster follow-up shots. The 4.2-inch cold hammer-forged barrel has a recessed target crown, polished chamber, and polished feed ramp. The FN Low-Profile Optics Mounting System accepts a wide range of miniature red dot optics, while all-black co-witness iron sights provide a dependable aiming option. An enhanced-texture polymer frame, interchangeable backstraps, fully ambidextrous controls, and a MIL-STD-1913 accessory rail complete the practical configuration.