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FN 509 Tactical 9mm 4.5″ Threaded Barrel 10+1

SKU: CSSI|RJ66100527  ·  Condition: New

$834.00

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Specifications
UPC 845737010195
Manufacturer

Manufacturer Part Number

66-100527

Action

Double Action Only

ATF Type

Pistol

Barrel Length

4.5"

Caliber/Gauge

9mm

Capacity

10 + 1

Length

12

Number of Magazines

2

Package Height

3.5

Package Width

11.5

Product Type

Pistol

Rate of Twist

1-10

Safety

Loaded Chamber Indicator

Shipping Weight

3.9

Sights

Suppressor Height Night Sights

Sights Type

3-Dot Night/Suppressor Height

Slide Description

Optic Ready/Serrated

State Restriction (CA)

NO SALE TO CALIFORNIA

State Restriction (IL)

NO SALE TO ILLINOIS PICA

Units per Box

1

About This Firearm

FN 66100527 509T 9mm Luger 10+1, 4.50″ Black Steel Threaded Barrel, Matte Black Optic Ready/Serrated Stainless Steel Slide, Matte Black Polymer Frame w/Picatinny Rail

The FN 509 Tactical extends the FN 509 family with an optic-ready slide, suppressor-height sights, and a threaded barrel for accessory compatibility. It uses FN’s Low-Profile Optics Mounting System to accept a range of miniature red dot optics and includes a sight-protecting slide cap. The pistol pairs a polymer frame with a stainless steel slide and a cold hammer-forged threaded barrel for practical range and duty use.

Key Specifications

  • The caliber is 9mm.
  • The barrel measures 4.50 inches and is threaded for muzzle devices.
  • The thread pattern is 1/2×28.
  • The magazine capacity is 10+1.
  • The unloaded weight is 27.90 oz.
  • The overall length is 7.90 inches.
  • The slide is optic-ready and serrated.
  • The sights are suppressor-height 3-dot night sights.
  • The frame material is polymer.
  • Features include the FN Low-Profile Optics Mounting System (U.S. Patent No. 10/352654).

The FN 509 Tactical is configured for shooters who prioritize a modern, optics-capable platform with practical handling and accessory compatibility. Its combination of a threaded cold hammer-forged barrel, suppressor-height sights, and optics-ready slide make it well suited for precision-focused range work and professional applications that require reliable, adaptable equipment.

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Massachusetts Notice
A valid Massachusetts LTC or FID is required to purchase this firearm. All sales are completed in-store at our Sutton, MA location. Need your LTC? We offer classes.