FN 509 9mm Pistol 4", FDE - 66-100489
- UPC
- 845737010232
- MPN
- 66-100489
- SKU
- 5165490554
- Manufacturer
- Fnh
$549.99
$629.99
Best offer
Good 4 Guns $485.99
Excellent Deal
This is the lowest price in our tracked history — an excellent time to buy.
Price Intelligence
Building confidence
Against lowest
Matches lowest seen
Typical price
7% below typical
From tracked high
$80.00 lower (13%)
Data depth
1 day, 1 price change
Useful signal, but more history will sharpen the read.
Tracked for 1 day. Last checked: 2026-08-07. Recorded 1 price change. The average price is $589.99. The price has ranged from $549.99 to $629.99. The current price of $549.99 is -7% below average.
Lowest
$549.99
Highest
$629.99
Average
$589.99
Tracked
1 day
Price Changes
1
Last Updated
2026-08-07
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Live Offers
Tracked retailer listings for FN 509 9mm 17+1 4" Barrel FDE Slide Frame. Compare current price, stock, and price history before leaving Firearm Data Lab.
Best Price History Across Offers
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Insights
Recent Price Drop
Dropped $80.00 (12.7%) since 2026-08-06.
Tracking Info
Tracked for 3 days. Last checked: 2026-08-07. Recorded 1 price change.