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.
Offered as a non-manual safety model
Fixed 3-dot luminescent sights (standard)
Easily racked, combat-style sights
External extractor; loaded chamber indicator
Improved front and rear cocking serrations
Cold hammer-forged stainless steel
Recessed target crown
Polished chamber and feed ramp
Polymer construction with replaceable steel frame/slide rails
Enhanced grip textures which enables faster follow-up shotsin all conditions
MIL-STD-1913 accessory mounting rail
Fully ambidextrous slide stop lever and magazine release
High visibility, low-friction follower; polymer base with blacSHIPS WITH
Two interchangeable backstraps
Two 17-round magazines or Two 10-round
MAG CAPACITY: 10 or 17 Rd.
WEIGHT: 26.9 oz.
BARREL LENGTH: 4.0″
OVERALL LENGTH: 7.4″
TWIST RATE: 1:10″ RH
TRIGGER PULL: 5.5 – 7.5 lb.
SIGHT RADIUS: 5.79″