The FN 509® is built on the proven architecture of the FNS™ Compact, FN made changes internally and externally to meet the rigorous performance standards of the MHS requirements and further developed the platform into the FN 509® with the help from industry experts. Over the course of development, the platform has been tested extensively for reliability, ammunition compatibility and durability – totaling more than one million rounds.

Caliber: 9mm

Operation: Double Action

Barrel: Cold Hammer Forged Stainless

Magazine Capacity: 17 (includes two 17 round mags)

Barrel Length: 4.0”

Overall Length: 7.4”

Twist Rate: 1:10 RH

Height: 5.56”

Width: 1.35”

Sight Radius: 5.79”

Manual Safety: None