FN 509 Compact MRD
FN Herstal · Pistol · In Production · 2020
Also known as: FN 509C MRD, 509 Compact MRD
Overview
The FN 509 Compact MRD is a compact, striker-fired, semi-automatic pistol chambered in 9x19mm Parabellum, produced by FN America as the concealed-carry-oriented, factory optics-ready member of the FN 509 family. It combines a 3.7-inch cold hammer-forged barrel with the FN Low Profile Optics Mounting System, which uses interchangeable adapter plates to directly mount more than ten popular micro red dot sights, together with co-witnessing all-black iron sights and fully ambidextrous controls. It ships with both a flush 12-round magazine and an extended 15-round magazine.
Specifications
| Weight (empty) | 723 g (25.5 oz) |
| Overall Length | 173 mm (6.81") |
| Barrel Length | 94 mm (3.70") |
| Height | 132 mm (5.20") |
| Width | 34 mm (1.34") |
| Sight Radius | 142 mm (5.59") |
| Action Type | Short Recoil |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 15 rounds |
| Magazine Type | Detachable Box |
| Muzzle Energy | 481 J (355 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Frame Material | Polymer |
| Slide Material | Stainless Steel |
| Barrel Material | Stainless Steel |
| Finish | Black Or FDE (Matte) |
Calibers
- 9x19mm Parabellum · primary · 9mm NATO — also known as 9mm Luger, 9mm NATO, 9x19mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Trigger Safety, Striker Block Safety, No Manual Safety
- Features: Fn Low Profile Optics Mounting System, Co Witness Iron Sights, Fully Ambidextrous Controls, Replaceable Steel Frame Rails, Accessory Rail, Cold Hammer Forged Barrel, Interchangeable Backstraps, Flush And Extended Magazines
Variants
- FN 509 Midsize MRD - Midsize Optics Ready
- FN 509 Compact Tactical - Threaded Barrel
Base model
Production
Production years: 2020-present
Civilian and law-enforcement concealed-carry market; production figures not publicly disclosed
Origin
Country of origin: United States
Notes
The Micro Red Dot (MRD) designation refers to the factory optics-ready slide cut and FN Low Profile Optics Mounting System. The pistol uses a polymer frame with replaceable steel frame rails; compact-length flush and full-length extended magazines let the shooter trade grip length for concealability.
Background
The 509 family grew out of FN's submission for the US Army's Modular Handgun System trials; when that contract went to SIG's P320, FN productized the design for the commercial market, and the Compact MRD brought factory red-dot readiness to the concealed-carry end of the line.