FN 509 MIDSIZE TACTICAL for Sale

Quick Look

The FN 509 Midsize Tactical stems from FN America's duty-proven 509 series, originally developed for the U.S. Army's MHS trials. It delivers a balance of tactical features and concealability, featuring threaded barrels, suppressor-height sights, and optics-readiness. Popular among concealed carriers and tactical shooters alike, this model fills a niche between full-size combat pistols and compacts.

Why It's a Top Choice

• Factory threaded barrel for suppressor compatibility
• Optics-ready slide supports multiple red dot footprints
• Suppressor-height night sights for co-witness aiming
• Interchangeable backstraps for ergonomic customization
• Ambidextrous controls suit left- or right-handed users

Key Variants

FN 509 Tactical

Full-size variant with extended grip and 24-round capability for duty or home defense.

FN 509 MRD

Optics-ready midsize version without the threaded barrel -- ideal for EDC with red dot.

FN 509 Compact

Smaller footprint for deep concealment while retaining modular features of the 509 line.

FN 509 LS Edge

Performance-focused model with long slide and flat-face trigger for competition shooting.

FN 509 Midsize

Base midsize model without suppressor support, for discreet, no-frills EDC.

Competitor Comparison Table

Feature	Fn 509 Midsize Tactical	Glock 19 MOS	Sig P320 XCarry
MSRP	$1,069	$745	$779
Capacity	15+1 / 24+1	15+1 / 17+1	17+1
Weight (oz)	27.9	23.6	26.5
Optics-Ready	Yes	Yes	Yes
Trigger Type	Striker	Striker	Striker
Notable Pro	Threaded barrel, suppressor-ready sights	Wide aftermarket support	Modular fire control unit
Notable Con	Higher price point	Plastic sights standard	Heavier slide recoil impulse

Best Use Cases

• Concealed carry with tactical features
• Suppressor host for night shooting
• Law enforcement or duty backup
• Training and range sessions
• Firearm enthusiasts and collectors

FAQs

What is the difference between the FN 509 Midsize Tactical and the regular Midsize?

The Tactical model includes a threaded barrel, suppressor-height sights, and an optics-ready slide; the standard does not.

Can I mount a red dot on the FN 509 Midsize Tactical?

Yes, it uses FN's Low-Profile Optics Mounting System compatible with major red dot brands.

How does the FN 509 Midsize Tactical compare to the Glock 19 MOS?

The FN offers more included features like suppressor sights and a threaded barrel but is heavier and pricier.