| FN 509 | |
|---|---|
| Type | Semi-automatic pistol |
| Place of origin | United States |
| Production history | |
| Designed | 2015 |
| Manufacturer | FN America |
| Unit cost | $649 (MSRP) |
| Produced | 2017–present |
| Variants | SeeVariants |
| 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 acceptred dot sights |
TheFN 509 is apolymer framestriker-firedsemi-automatic pistol manufactured by FN America, a division ofFN Herstal. It is chambered in9×19mm Parabellum featuringdouble-action operation and aPicatinny rail located forward of thetrigger guard. Tactical, midsize, and compact variants have also been made available.
Two other models, theFN 510 and theFN 545 (10mm Auto and.45 ACP respectively) were introduced in 2023.[2]
As part of theXM17 Modular Handgun System competition (MHS) initiated in September 2015,FN Herstal entered a polymer-framed,striker-fired pistol, derived from theFN FNS.[3] AfterSIG Sauer won the competition in January 2017 with a modified version of theP320,[4][5] FN America brought a version of their entry, now known as the FN 509, to the commercial market.[6]
FN sought consultation from retiredDelta Force operatorLarry Vickers during early development of the FN 509.[7] FN America stated that during development and testing of the MHS entry and the FN 509, over a million rounds of ammunition were used.[8]
The FN 509 is a striker-fired handgun with astainless steel slide withferritic nitrocarburizing finish and a polymer frame. Black andflat dark earth (FDE) colorings are available. Barrel length is 4.0 inches (100 mm). Theslide has serrations on both front and back, for easy slide manipulation. There is a full-sizedgrip, housing 17-roundmagazines; 10-round magazines are available for states with ahigh-capacity magazine ban.
The backstrap of the grip accepts interchangeable inserts; one arched and one flat.[6] Instead of a manual safety, the 509 includes anintegrated trigger safety (the articulated trigger type like theFN FNS) as part of its four passive safety systems: a striker block, adrop safety, atrigger disconnect and a trigger safety lever.[9]
Magazine releases andslide locks are present on both side of the gun.[9]
Several variants of the FN 509 have been made available:[10]
Also available are an inert training pistol,[11] and a Simunition (simulated ammunition) pistol.[12]
| 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 | [15] | [16][17] | [18] | [19] | [20][21] |
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).
United States: Standard-issue sidearm (MRD-LE variant) of theLos Angeles Police Department as of 2021.[22]