FN 509 for Sale

Quick Look

The FN 509 debuted in 2017, developed by FN Herstal to meet FBI standards for duty pistols. It combines ruggedness with modular design for versatile use. The 509 remains popular among law enforcement and civilian markets for self-defense and duty roles.

Why It's a Top Choice

• High-capacity striker-fired pistol with robust reliability
• Modular grip system for customizable ergonomics
• Fiber optic sights standard on many models for quick target acquisition
• Ambidextrous controls suit left- and right-handed shooters
• Strong aftermarket support and accessories availability

Key Variants

FN 509 Tactical

Designed for duty and tactical professionals with enhanced optics-ready slide and threaded barrel.

FN 509 Midsize

Offers a balance of concealability and capacity, ideal for daily carry.

FN 509 LS Edge

Performance-oriented version with enhanced trigger and optics-ready slide for competition use.

Competitor Comparison

Feature	FN 509	Glock 17	Sig Sauer P320
MSRP	$649	$599	$649
Capacity/Size	17+1 rounds, full-size 4.5\" barrel	17+1 rounds, full-size 4.49\" barrel	17+1 rounds, full-size 4.7\" barrel
Weight	26.7 oz	22 oz	29 oz
Optics-Ready	Yes (select models)	Yes (MOS models)	Yes (standard)
Trigger Type	Striker-fired	Striker-fired	Striker-fired
Notable Pro	Ergonomic modular grips	Proven reliability	Modular frame system
Notable Con	Heavier than some competitors	Less grip customization	Higher MSRP

Best Use Cases

• Self-defense and concealed carry
• Law enforcement duty use
• Range practice and training
• Home defense
• Competition shooting (especially LS Edge)

FAQs

Can I mount a red dot sight on the FN 509?

Yes, select FN 509 models feature optics-ready slides that accept popular micro red dot sights for faster target acquisition.

What is the magazine capacity of the FN 509?

The standard magazine capacity is 17 rounds of 9mm in the full-size FN 509.

How does the FN 509 compare in reliability?

FN 509 meets MIL-STD-810 standards and FBI requirements, proving highly reliable in various conditions.