The FN 509™ has been tested extensively for reliability, ammunition compatibility and durability – totaling more than one million rounds.
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Shop FN 509 Accessories Related Products FN 509® FN 509® Tactical Specs Caliber:9mm Operation:Double-action Mag Capacity:10 or 15 Rd. Weight:26.5 oz. Barrel Length:4.0" Overall Length:7.4" Twist Rate:1:10" RH Height:5.2" Width:1.35" ...