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Fabrique Nationale 509

Semi-Automatic Hand Gun [ 2017 ]

The Fabrique Nationale America FN 509 is a relatively new full-sized polymer-framed semi-automatic pistol in 9mm chambering.

Authored By: Staff Writer | Last Edited: 09/03/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The FN Model 509 has became an offshoot of the earlier United States Army Modular Handgun System, developed to succeed the aging Italian Beretta M9 - the ultimate winner becoming the SIG-Sauer P320. The Model 509 is a modified form of the competition entrant, revised for civilian, security, and law enforcement market sales and use.

The gun uses a standard polymer / cold hammer-forged stainless steel combination frame design with full-length, ribbed slide assembly. Accessories can be mounted on a short section of MIL-STD-1913 rail under the muzzle and ahead of the trigger unit. No manual safety is present. Passive safeties are part of the base design. A 10-round magazine is offered to adhere to state regulations though the standard feed is a 17-round capacity form. The barrel, measuring 4" in length, can be threaded to accept a suppressor. A loaded chamber indicator showcases to the operator the status of the firing chamber. The trigger is Double-Action Only (DAO) and iron combat-style sights are of the fixed, three-dot luminescent style (law enforcement receives access to a fixed 3-dot night sight version). Backstraps are interchangeable. Overall length of the weapon reaches 7.4 inches. The slide stop lever and magazine release are ambidextrous.

Current market forms are the FN 509 and FN 509 tactical, the latter with threaded barrel, Low-Profile Optics Mounting System (LPOMS) and optional 24-count extended magazine.©MilitaryFactory.com
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Service Year

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United States


Semi-Automatic Hand Gun

Fabrique Nationale America - USA / Belgium
(View other Arms-Related Manufacturers)
National flag of the United States United States
(OPERATORS list includes past, present, and future operators when applicable)
Pistol / Sidearm
Compact design for close-quarters work or general self-defense.
This weapon is either inherently silent/suppressed or can be made so through special assembly added at the muzzle, specialized subsonic ammunition or a combination of both.

Overall Length
187 mm
7.36 in
Barrel Length
101 mm
3.98 in
Empty Wgt
1.68 lb
0.76 kg

Iron Front and Rear.


Semi-Automatic; Strike-Fired

One shot per trigger pull; self-loading or auto-loading action aided by internal mechanism; trigger management (and initial cocking) typically required by the operator; subsequent shots are aided by the unlocked / moved bolt.
(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


9x19mm Parabellum

Sample Visuals**

Graphical image of a 9mm pistol cartridge
Rounds / Feed

10-, 17- or 24-round detachable box magazine.
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.
Max Eff.Range
165 ft
(50 m | 55 yd)
Muzzle Velocity
1,150 ft/sec
(351 m/sec)

FN 509 - Base Series Designation.
FN 509 Tactical - Low-Profile Optics Mounting System; threaded muzzle for suppressor installation; optional 24-count magazine.

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Images Gallery

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Image from official FN America marketing material.
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