

Field stripping the FN 509 is quick andeasy. Two 17-round magazines are included with each pistol, and 10-roundversions are available for states with capacity restrictions. The high-visibility orange follower is constructed of a low-frictionmaterial. Perforations enable the shooter to instantly see how much ammunitionremains. On a related note, the forward edge of the magazine's floorplatehas a sturdy lip extending just enough that it could be hooked on something andthe magazine pried out one-handed should the need arise.Īs for the magazine, it's steel with a fully weldedseam. Second, the grips are scalloped on each side justwhere they meet the magazine's floorplate, allowing for a good grip in case themagazine needs to be manually torn out of the gun to clear a stubbornmalfunction. As a horseman from way back, I find thelanyard loop lends a little nostalgic charm to an otherwise thoroughly modernpistol. Each MHS contenderI've examined included a lanyard loop.

Originally added to military revolversin cavalry days to prevent the loss of an empty sidearm if a mounted trooperhad to drop it and draw his saber, it's a feature that has somehow hung on andis still included in many military sidearm specifications. My two favorite frame features are at the bottomof the grip. Three different textures grace the FN 509'sgrip, and a lanyard loop is located at the bottom of the interchangeablebackstraps.Ī low "fence" protects the slide lock fromaccidental activation, and the trigger guard is engineered large enough forcomfortable use with gloves. Drive out the tinyretaining pin, exchange the backstraps, and replace the pin. This enables the user to tweak grip diameter and feelto suit his or her hand. The factory-installed backstrap is curved the spare is a slenderstraight-backed version. It provides a visualand tactile loaded-chamber indicator.Įach FN 509 pistol ships with two differentbackstraps. The forward end of the external extractor isengineered to protrude slightly when a round is chambered. The rear sight offers a vertical front face useful forracking the slide one-handed on a belt, steering wheel, concrete curb, orwhatnot. (Tritium night sightsare available for law enforcement.) Made of steel, both sights are robustenough to pound spikes. The stainless slide features tapered sidesfor easy holstering, a lowered and flared ejection port for reliable ejectionof empties and unfired cartridges, and drift-adjustable sights front and rear.Luminescent three-dot paint offers low-light performance. Design features are deeply researched and finessed toperformance-enhancing perfection. However, these facts don't begin to do justice tothe FN 509. As mentioned before, it's of striker-fire design, and themagazine capacity is 17 rounds. Barrel andslide are finished in matte black via a ferritic nitrocarburation processsimilar to nitride. It has a deeply flared ejection port, andthe external extractor acts as a visual and tactile loaded-chamberindicator.Īs for the slide, it's machined from stainless-steelbar stock, features modern contours and sights, and houses a 4.0-inch barrelthat cams up into the massive ejection port to lock into battery. × Machined from stainless-steel bar stock,the slide is finished in matte black. As such, the frame size ispermanent and can't be converted into a compact version. The FN 509 maylook to the casual observer to be just another highly refined, polymer-frame,high-capacity, striker-fired 9mm pistol, but there's more to it than meets theeye.įeaturing a full-size, all-four-fingers-fit polymerframe, the FN 509 is serialized on the bottom of the dustcover via a steelplate mortised into the accessory rail rather than on a steel skeletoncontained inside a removable polymer frame shell. MHS) is the FN 509, and it's theresult of years of rigorous research, development, and testing. Civilian shooters also won because the competition among the variouspistol manufacturers resulted in an all-new group of top-performinghigh-capacity, polymer-frame pistols.įN America's entry in the military trials (known asthe Modular Handgun System program, a.k.a. Army's search for a standard-duty pistol toreplace the Beretta M9 ended in January 2017.
