FN 509 Midsize MRD 9mm Luger 4in Black Pistol – 15+1 Rounds – This evolution of the FN 509 Midsize, now featuring the FN Low Profile Optics Mounting System, gives you the option of direct mounting more than 10 different miniature red dot optics to your concealed carry pistol. The FN 509 Midsize MRD features a four-inch barrel and slide with optics mounting package, a midsized frame, standard 15-round capacity and is compatible with larger capacity FN 509 magazines with use of a sleeve. The improved controls aid in manipulation, the new improved texturing on the two included backstraps provides better recoil management, and a new flatter faced trigger allows for more controllable trigger press and cleaner break.
- Fully ambidextrous controls
- FN Low Profile Optics Mounting System with plate adapters for direct mounting of more than 10 optics
- Easily racked, combat-style sights
- Cold hammer-forged stainless steel
- Enhanced grip textures which enables faster follow-up shots in all conditions
| Action | Pistol |
|---|---|
| Capacity | 15+1 |
| Barrel Length | 4in |
| Finish | Black |
| Grips | Black Polymer |
| Sights | Black Co-Witness Iron Sights |
| Weight | 26.5oz |
| Cartridge | 9mm Luger |
| Gun Model | 509 |
| Hand | Right |
| Overall Length | 7.4in |
| State Compliance | Colorado Compliant |
| Type | Centerfire |
Frequently Asked Questions – FN 509 Midsize MRD 9mm Luger 4in Black Pistol - 15+1 Rounds
- How fast does this ship?
- Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
- Do I need registration?
- Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
- Is this legal in D.C.?
- Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
- Is the FN 509 Midsize MRD 9mm Luger 4in Black Pistol - 15+1 Rounds suitable for me?
- This FN 509 Midsize MRD 9mm Luger 4in Black Pistol - 15+1 Rounds is popular for uses like handguns.
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