FN 509 Tactical
Factory optic-ready tactical configuration.
Source-backed record
Research record; not firsthand tested.
12 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.
pistol
Weight: 27.9 oz
Dimensions: 7.9 × 1.35 × 5.75 in
Compatibility: FN Low-Profile Optics-Mounting System
Not listed
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No merchant links are currently listed.Description
Factory optic-ready tactical configuration.
Specifications
| Frame | Polymer |
|---|---|
| Action | Striker-fired DAO |
| Safety | Internal passive safeties; no manual safety |
| Sights | Suppressor-height night sights |
| Caliber | 9 mm |
| Capacity | 17 or 24 rounds; 10-round configurations available |
| Controls | Ambidextrous slide stop and magazine release |
| Thread pitch | 1/2 × 28 |
| Trigger pull | 5.5–7.5 lb |
| Barrel length | 4.5 in threaded |
| Accessory rail | MIL-STD-1913 |
| Optics interface | FN Low-Profile Optics-Mounting System |
Sources and verification
- Manufacturer product page
- Specification source — checked July 23, 2026