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
Mag Capacity: 10 Rd.
Weight: 26.9 oz.
Barrel Length: 4.0"
Overall Length: 7.4"
Twist Rate: 1:10" RH
Length: 7.4"
Height: 5.56"
Width: 1.35"
Trigger Pull: 5.5-7.5 lb.
Sight Radius: 5.79"

GENERAL SPECIFICATIONS
• Striker-fired autoloader
• Double-action operation
• Offered as a non-manual safety model
• Fixed 3-dot luminescent sights

SLIDE
• Easily racked, combat-style sights
• External extractor; loaded chamber indicator
• Improved front and rear cocking serrations

BARREL
• Cold hammer-forged stainless steel
• Recessed target crown
• Polished chamber and feed ramp

FRAME
• Enhanced grip texture which enables faster follow-up shots in all conditions
• Interchangeable backstraps
• MIL-STD-1913 accessory mounting rail

OPERATING CONTROLS
• Fully ambidextrous slide stop lever and magazine release

MAGAZINE
• High visibility, low-friction follower; polymer base with black finish

SHIPS WITH
• Two interchangeable backstraps
• Two 10-round magazines
• Owner’s manual
• Locking device
• FN logo soft pistol case