The FN 509 Midsize Tactical pistol in 9mm and black finish (brand part no. 66-101937) ships red-dot and suppressor ready, with a factory-mounted Holosun 407C giving buyers a complete optic-equipped package out of the box. FN America builds the pistol with FN’s Low-Profile Optics-Mounting System and a cold hammer-forged stainless steel barrel with a recessed target crown, and suppressor-height 3-dot night sights co-witness through the optic. An external extractor, loaded chamber indicator, and flat-faced trigger add safety awareness and consistent presses, while fully ambidextrous controls and a MIL-STD-1913 accessory rail round out the tactical feature set. Two magazines, a case, locking device, and owner’s manual ship with the pistol. Among factory-optic-equipped semi-auto handguns, this 509 Midsize Tactical configuration favors shooters who want a red dot ready to go from day one.
Key Specifications
- The chambering is 9mm.
- The capacity is 10+1 rounds.
- The barrel measures 4.5 inches, cold hammer-forged with a recessed target crown.
- The pistol ships equipped with a Holosun 407C red dot optic.
- The sights are suppressor-height 3-dot night sights, co-witnessing through the optic.
- The controls are fully ambidextrous, with a MIL-STD-1913 accessory rail.
- A case, locking device, and owner’s manual ship with the pistol.
- The slide is Optic Ready and Serrated.
- Ships with 2 magazines.
- The trigger action is Striker Fired.
Frequently Asked Questions
Does this pistol come with a red dot optic? Yes, it ships factory-equipped with a Holosun 407C.
Is this pistol suppressor ready? Yes, the suppressor-height sights and threaded-barrel-compatible design support suppressor use.
Buy the FN 509 Midsize Tactical, Holosun
A complete, factory-optic-equipped tactical package is exactly what this 509 Midsize Tactical delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.
| UPC | 845737018412 |
|---|---|
| Manufacturer | FN America / FN Herstal |
| Manufacturer Part Number | 66-101937 |
| Action | Striker Fired |
| Barrel Length | 4.5" |
| Caliber/Gauge | 9mm |
| Capacity | 10 + 1 |
| Safety | No |
| Sights | 3-Dot Night/Suppressor Height |
| Sights Type | 3-Dot Night/Suppressor Height |
| Slide Description | Optic Ready/Serrated |
| ATF Type | Pistol |
| Length | 12.0500 |
| Number of Magazines | 2 |
| Package Height | 3.5 |
| Package Width | 11.5 |
| Product Type | Semi-Auto Pistol |
| Shipping Weight | 3.95 |







