FN America 509 MRD, 9MM, 4.5″ Barrel, Black, Suppressor Height Adjustable Sights, 17 Rounds

Product Description

The FN America 509 MRD 9mm pistol is a striker-fired, full-size platform engineered for shooters who value accuracy and performance. This semi-automatic pistol combines a 4.5″ barrel with a 17-round capacity, delivering the firepower and handling characteristics serious recreational and sporting shooters demand. Additionally, the 509 MRD features an optics-ready slide and suppressor height adjustable sights for modern versatility.

Core Features & Specifications

Built on FN’s proven striker-fired action, the 509 MRD delivers consistent trigger performance and fast follow-up shots. The full-size polymer frame and matte black finish provide a professional appearance and durable platform. Furthermore, the 17-round magazine capacity combined with the 4.5″ barrel length makes this pistol equally at home on the range or in defensive contexts. Two magazines are included with your purchase.

Optics Ready & Customizable

The optics-ready slide allows you to mount modern red dot sights without gunsmithing, while the suppressor height adjustable sights remain fully functional as backup iron sights. Moreover, this configuration makes the 509 MRD an excellent choice for shooters who want to upgrade to electronic optics without sacrificing sight reliability. The adjustable sights ensure you can zero the pistol to your specific ammunition and shooting style.

Built for Sporting & Recreational Excellence

Whether you’re training for competition, enjoying recreational target shooting, or seeking a reliable full-size platform, the FN America 509 MRD delivers performance you can trust. The combination of the 4.5″ barrel and striker-fired action produces reliable accuracy at typical handgun distances. In addition, the 17-round capacity reduces magazine changes during extended range sessions.

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

Frequently Asked Questions

Q: Is the FN America 509 MRD optics-ready, and what red dot footprint does it use?

A: Yes, the 509 MRD features an optics-ready slide designed to accept modern red dot sights. The suppressor height adjustable sights serve as backup iron sights when an optic is mounted. Send us a message for details about specific red dot compatibility.

Q: What is included with the FN America 509 MRD, and does it come with a warranty?

A: The 509 MRD ships with two 17-round magazines. FN America backs all firearms with a manufacturer warranty covering defects in materials and workmanship. Our team at Western Sport can provide complete warranty details when you call.

Q: What is the transfer process for purchasing the 509 MRD in Texas?

A: As a licensed FFL dealer, Western Sport handles all federal and Texas transfer requirements. Send us a message to discuss your purchase, and we’ll guide you through the process step by step.

Q: Who is the FN America 509 MRD best suited for?

A: The 509 MRD is ideal for sporting shooters, recreational range users, and anyone seeking a full-size striker-fired platform with modern features like an optics-ready slide and 17-round capacity. The adjustable sights and proven FN action make it a reliable choice for skill development and consistent performance.

Additional information