The 509 Night Sight Set features the same front and and rear sight design as the standard sights but with Tritium inserts for low-light target acquisition. The set contains a front and rear sight these will not fit FNS or FNX series pistols.

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The 509 Night Sight Set features the same front and and rear sight design as the standard sights but with Tritium inserts for low-light target acquisition. The set contains a front and rear sight these will not fit FNS or FNX series pistols.
| UPC | 845737008390 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 671705 |