Overview
When assessing duty-grade semi-autos for defensive use, durability, sighting options, and ergonomics are non-negotiable. The FN 509 delivers a blend of proven design and practical features built around real-world applications.
FN 509 is a full-size, striker-fired, semi-automatic 9MM platform with a 4″ profile, polymer frame, interchangeable grip components, and factory-installed night sights. It ships with one magazine and a soft case—priced at $549.99. 
Shop this product to view specifications and buy directly from our shop page—clicking the link will take you to the product listing where purchase is available through the retailer.
HWK XL 5.56 Giveaway
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A third-party retailer is currently hosting a giveaway for an HWK XL 5.56 pistol package (≈ $1,800 retail value).
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Key Features and Tactical Applications
The FN 509’s striker-fired action yields a consistent trigger feel that many professionals prefer for rapid follow-up shots. The full-size frame provides a longer sight radius for more precise aiming, while the 9MM chambering balances controllability, magazine capacity, and accessible ammunition—ideal for home defense, duty carry, and range training.
Interchangeable Fit and Night Sights
Interchangeable grip components allow shooters to tailor hand fit for repeatable control. Factory night sights give an edge in low-light scenarios, improving target acquisition in dusk or no-light conditions without immediately upgrading optics.
At $549.99, this package includes one magazine and a soft case—useful for secure transport and storage right out of the box. View product details and pricing to confirm current stock and purchase options.
Ergonomics, Materials, and Reliability
The polymer frame reduces weight while maintaining a robust chassis. FN’s manufacturing pedigree makes the platform notable for consistent feed and durability under regular training. The 4″ profile offers a compromise between concealability and ballistic performance; 9MM remains a pragmatic caliber with a wide selection of defensive and training loads.
Purchase and Availability
If you need a reliable, full-size defensive pistol with night sights and modular ergonomics, the FN 509 is a practical choice. Click through to our product page to check inventory and complete a purchase—the shop listing will direct you to the retailer for ordering.
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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