FN 509
Polymer frame semi-automatic handgun
From Wikipedia, the free encyclopedia
The FN 509 is a polymer frame striker-fired semi-automatic pistol manufactured by FN America, a division of FN Herstal.
| FN 509 | |
|---|---|
FN 509 midsize | |
| Type | Semi-automatic pistol |
| Place of origin | United States |
| Production history | |
| Designed | 2015 |
| Manufacturer | FN America |
| Unit cost | $649 (MSRP) |
| Produced | 2017–present |
| Variants | See Variants |
| Specifications | |
| Mass | 26.9 oz (760 g) |
| Length | 7.4 in (190 mm) |
| Barrel length | 4.0 in (100 mm) |
| Width | 1.35 in (34 mm) |
| Height | 5.56 in (141 mm) |
| Cartridge |
|
| Action | Double action |
| Feed system | Box magazine |
| Sights | Fixed 3-dot (standard); Tactical and MRD[a] variants accept red dot sights |
History
As part of the XM17 Modular Handgun System competition (MHS) initiated in September 2015, FN Herstal entered a polymer-framed, striker-fired pistol, derived from the FN FNS.[2]
After SIG Sauer won the competition in January 2017 with a modified version of the P320,[3][4] FN America brought a version of their entry, now known as the FN 509, to the commercial market.[5]
FN sought consultation from retired Delta Force operator Larry Vickers during early development of the FN 509.[6]
FN America stated that during development and testing of the MHS entry and the FN 509, over a million rounds of ammunition were used.[7]
Design
The FN 509 is a striker-fired handgun with a stainless steel slide with ferritic nitrocarburizing finish and a polymer frame.
Black and flat dark earth (FDE) colorings are available.
The FN 509's barrel length is 4.0 inches (100 mm) while employing a full-sized grip. The slide has serrations on both front and back, for easy slide manipulation
The FN 509 features a Picatinny rail located forward of the trigger guard. The backstrap of the grip accepts interchangeable inserts; one arched and one flat.[5]
Operation
The FN 509 features double-action operation with magazine releases and slide locks present on both side of the gun.[8]
Instead of a manual safety, the 509 includes an integrated trigger safety (the articulated trigger type like the FN FNS) as part of its four passive safety systems: a striker block, a drop safety, a trigger disconnect and a trigger safety lever.[8]
Magazines
The FN 509 primarily uses 17-round magazines; 10-round magazines are available for states with a high-capacity magazine ban.
Ammunition
While the FN 509 is primarily chambered in 9×19mm Parabellum, FN Herstal also offers the model in other calibres.
Specifications
| Specification | FN 509 | FN 509 Tactical | FN 509 Midsize | FN 509 Midsize MRD | FN 509 Compact MRD |
|---|---|---|---|---|---|
| Barrel length | 4.0 in (100 mm) | 4.5 in (110 mm) | 4.0 in (100 mm) | 3.7 in (94 mm) | |
| Overall length | 7.4 in (190 mm) | 7.9 in (200 mm) | 7.4 in (190 mm) | 6.8 in (170 mm) | |
| Overall width | 1.35 in (34 mm) | ||||
| Height | 5.56 in (141 mm) | 5.75 in (146 mm) | 5.2 in (130 mm) | 4.8 in (120 mm) | |
| Weight | 26.9 oz (760 g) | 27.9 oz (790 g) | 26.5 oz (750 g) | 25.5 oz (720 g) | |
| Magazine capacity | 17-round | 17-round† | 15-round | 12-round‡ | |
| Optics mount | No | Yes | No | Yes | Yes |
| Color | Black or FDE | Black or FDE | Black | Black or FDE | |
| Reference | [9] | [10][11] | [12] | [13] | [14][15] |
For all variants, 10-round magazines are available for states that restrict capacity.
† For the Tactical variant, 24-round extended magazines also available.
‡ For the Compact MRD variant, 15-round extended magazines also available, which increase height to 5.2 in (130 mm).
Variants
509
Aside from inert training pistol[16] and Simunition variants,[17] several offerings of the FN 509 have been made available:[18]
Tactical
4.5-inch (110 mm) barrel length, 17- and 24-round magazines, available in black or FDE, threaded barrel, raised sights (to accommodate a suppressor), with low-profile optics mounting system (for a red dot sight).
Midsize
4.0-inch (100 mm) barrel length, 15-round magazines, available in black, with a midsize frame intended for concealed carry.
Midsize MRD
As above, with low-profile optics mounting system.
Compact MRD
3.7-inch (94 mm) barrel length, 12- and 15-round magazines, available in black or FDE, with low-profile optics mounting system.
Other variants
FN 503
Introduced in March 2020, the FN 503 is the subcompact model of the FN 509.[19]
FN 502
Introduced in September 2021, the FN 502 is the .22 variant of the FN 509.[20]
FN 510
Introduced in 2023, the FN 510 is the 10mm Auto variant of the FN 509.[21]
FN 545
Introduced in 2023, the FN 545 is the .45 ACP variant of the FN 509.[21]
Users
United States
- Standard-issue sidearm (MRD-LE variant) of the Los Angeles Police Department as of 2021.[22]
