The FN 509 Midsize delivers high performance, reliability, and accuracy. It comes chambered in 9mm with a 4 inch barrel. Features include a matte polymer frame with a picatinny rail, 3-dot fixed sights, a stainless steel slide, and two 15 round magazines.
![](https://grabagun.com/media/catalog/product/f/n/fn_509_midsize_1.jpg?quality=80&fit=bounds&height=656&width=800)
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