FN 509 Midsize MRD 9mm 4-Inch Black Pistol

Description

The FN 509 Midsize MRD is a semi-automatic 9mm pistol with a 4-inch barrel, midsize polymer frame, and black finish. Its FN Low Profile Optics Mounting System supports direct mounting of compatible miniature red dot optics, while fully ambidextrous controls and interchangeable backstraps support adaptable handling.

The pistol also features fixed co-witness iron sights, a MIL-STD-1913 accessory rail, front and rear cocking serrations, and a cold hammer-forged stainless steel barrel with a recessed crown. The package includes two 10-round magazines, interchangeable backstraps, a locking device, an owner’s manual, and an FN soft pistol case.

Key Specifications

• The manufacturer is FN America / FN Herstal.
• The model is FN 509 Midsize MRD.
• The chambering is 9mm Luger.
• The action is semi-automatic.
• The barrel measures 4 inches.
• The frame and grip material are polymer.
• The frame and slide are finished in black.
• The optics interface is a multiple-footprint FN Low Profile Optics Mounting System.
• The pistol includes two 10-round magazines.
• The UPC is 845737010744, and the SKU is not provided.

With its midsize format, ambidextrous controls, optic-ready slide, accessory rail, and included mounting system, the FN 509 Midsize MRD provides a practical configuration for users seeking a versatile 9mm pistol platform.

Specifications