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July 31, 2026FN 66100489 509 9mm Luger 17+1 4″ Black Target Crown Steel Barrel, Flat Dark Earth Serrated Stainless Steel Slide & Polymer Frame w/Picatinny Rail, FDE Interchangeable Backstrap Grip, Ambidextrous
$557.23
FN 66100489 509 9mm Luger 17+1 4″ Black Target Crown Steel Barrel, Flat Dark Earth Serrated Stainless Steel Slide & Polymer Frame w/Picatinny Rail, FDE Interchangeable Backstrap Grip, Ambidextrous
Out of stock
The FN 509 is built on the proven architecture of the FNS Compact. Featuring a cold hammer-forged stainless steel barrel; combat-style sights; front and rear cocking serrations; MIL-STD 1913 accessory mounting rail; interchangeable backstraps; double action operation; fully ambidextrous slide stop lever and magazine release; fixed 3 dot luminescent sights and a polymer construction with replaceable steel frame/slide rails. Includes two interchangeable backstraps, two magazines, owners manual, locking device and soft pistol case.
| UPC | 845737010232 |
|---|---|
| Manufacturer | FN America / FN Herstal |
| Manufacturer Part Number | 66100489 |
| Action | Double Action Only |
| Barrel Length | 4" |
| Caliber/Gauge | 9mm |
| Capacity | 17 |
| Number of Magazines | 2 / 17 rd. |
| Product Type | Striker Fired |
| Rate of Twist | 1:10" |
| Safety | No |
| Sights | 3-Dot Fixed |
| Sights Type | 3-Dot Fixed |
| Slide Description | Serrated |






