Description
The FN 509 Compact MRD is a striker-fired 9mm pistol that combines full-size performance with a compact, optics-ready design, making it suitable for concealed carry and duty use. Manufactured by FN America, a subsidiary of FN Herstal, this pistol is part of the FN 509 series, which was developed to meet the rigorous standards of military and law enforcement agencies.
Key Specifications
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Caliber: 9mm
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Barrel Length: 3.7 inches
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Overall Length: 6.8 inches
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Height: 4.8 inches (with 12-round magazine)
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Width: 1.35 inches
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Weight: 25.5 ounces (unloaded)
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Magazine Capacity: 12+1 (flush-fit) and 15+1 (extended); compatible with 17- and 24-round FN 509 magazines
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Frame: Polymer with interchangeable backstraps
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Slide: Stainless steel with ferritic nitrocarburizing finish
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Sights: Suppressor-height iron sights that co-witness with optics
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Trigger: Flat-faced with a pull weight between 5.5 to 7.7 lbs
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Accessory Rail: MIL-STD-1913 Picatinny rail
Notable Features
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Optics-Ready Slide: The FN 509 Compact MRD features FN's patented Low-Profile Optics Mounting System, which allows for direct mounting of more than 10 different miniature red dot optics. This system ensures a secure fit and co-witnesses with the suppressor-height iron sights.
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Enhanced Ergonomics: The pistol includes interchangeable backstraps to accommodate different hand sizes, and the grip texture provides a secure hold. The flat-faced trigger offers a consistent and controllable trigger press.
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Ambidextrous Controls: Fully ambidextrous slide stop lever and magazine release make the pistol suitable for both left- and right-handed shooters.
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Durability: Built to withstand rigorous use, the FN 509 Compact MRD has a cold hammer-forged barrel and a slide with a durable finish, ensuring longevity and resistance to wear and corrosion.
Performance Insights
The FN 509 Compact MRD has been praised for its reliability and accuracy. Its compact size does not compromise performance, offering a balance between concealability and shootability. The optics-ready feature allows for quick target acquisition, and the pistol's design ensures consistent performance under various conditions.
Item # FN509C












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