FN Herstal

FN 509 Midsize Tactical 9mm 10 Round Pistol 66-100838

SKU # 142096 Part # 66100838 UPC # 845737015176

$1,008.75

FN 509 Midsize Tactical 66-100838 Overview

The FN 509 Midsize Tactical 66-100838 is a 9mm pistol with a midsize grip beneath an extended, threaded upper. Its 4.5-inch barrel projects beyond the slide, and elevated night sights provide an immediately recognizable Tactical profile. The handgun's polymer frame carries molded texture and a rail-equipped dust cover.

The sight bodies stand high above the slide, with illuminated elements for low-light reference. FN also provides its Low-Profile Optics-Mounting System, allowing a compatible red dot to be fitted using the appropriate hardware. Interchangeable backstraps address grip fit at the rear of the frame.

The FN 509 Midsize Tactical pistol's two 10-round magazines and two backstraps accompany its 4.5-inch threaded barrel, providing the standard equipment around the optics-ready upper. Overall length is approximately 7.9 inches, with weight at 27.9 ounces before adding a compatible muzzle attachment.

FN 509 Midsize Tactical Key Features

  • Threaded Barrel: The 4.5-inch barrel provides 1/2x28 threads for compatible attachments.
  • Patented Optic System: FN's low-profile mounting arrangement fits supported red dots.
  • Iron Sights: Suppressor-height sights provide self-illuminated front and rear references.
  • Interchangeable Backstraps: The FN 509 Midsize Tactical is fitted with two interchangeable backstraps for grip fitting.
  • Included Magazines: In this configuration, the FN 509 Midsize Tactical comes with two 10-round magazines.

Specifications

MPN
66100838
Model
FN 509 Midsize Tactical
Caliber
9mm
Capacity
10 Round
Barrel Length
4.5"
Barrel Color
Black
Threaded Barrel
Yes
Thread Pitch
1/2x28
Frame Material
Polymer
Grip
Polymer
Grip Color
Black
Front Sight
Suppressor Height Night
Rear Sight
Suppressor Height Night
Overall Length
7.9"
Height
5.2"
Width
1.35"
Product Weight
27.9 oz
Includes
2 Interchangeable Backstraps, Picatinny Rail
Magazine Quantity
2

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