| Brand | FN |
| Category | Pistols |
| Caliber | 9mm Luger |
| Model | 509 |
| Series | Midsize MRD |
| Frame Finish | Matte Black |
| Action | DAO |
| Barrel Length Range | 4" to 4.99" |
| Slide Description | Serrated Matte Black Stainless Steel with Optic Cut |
| Slide Finish | Matte Black |
| Slide Material | Stainless Steel |
| Capacity | 15+1 |
| Frame Description | Matte Black Polymer with Picatinny Rail |
| Frame Material | Polymer |
| Grips | Textured Black Interchangeable Backstraps |
| Hand | Right |
| Includes | 2 Magazines |
| Max Capacity | 15 |
| OAL | 7.40" |
| Safety | No Manual |
| Sight Configuration | Co-Witness Iron |
| Sight Style | Contrast |
| Weight | 26.50 oz |
| Barrel Description | 4" Cold Hammer Forged, Recessed Target Crown |
| Barrel Length | 4" |
