FN Herstal Unveils Its 5.7x28mm New NATO Caliber for Pistols and Submachine Guns
FN Herstal Unveils Its 5.7x28mm New NATO Caliber for Pistols and Submachine Guns

FN Herstal Unveils Its 5.7x28mm NATO Caliber for Pistols and Submachine Guns

Belgium-based FN Herstal, one of the world’s leading designers and manufacturers of small caliber weapons and ammunition, and integrated weapon systems, is proud to announce that the FN®-designed 5.7x28mm caliber was recently recognized as a NATO caliber with the NATO STANAG 4509 (standardization agreement). Simultaneously, FN Herstal designed the FN P90® Personal Defense Weapon (PDW), then later the FN Five-seveN® pistol, two weapons firing 5.7x28mm ammunition that are currently in service with a large number of military and police forces across the globe. FN Herstal started the design of the 5.7×28mm cartridge in the late 1980s when body armor was becoming standard combat equipment and the modern-day battlefield required a more appropriate and more effective Cartridge.

5.7x28mm NATO caliber in the FN ammunition range.
5.7x28mm NATO caliber in the FN ammunition range.

In a continuous effort to promote interchangeability of all small caliber ammunition used by allied armed forces, NATO has recently finalized the standardization process of the FN®-designed 5.7x28mm caliber by promulgating the standardization agreement (STANAG) 4509. The 5.7x28mm caliber is now integrated into the Multi-Caliber Manual Of Proof and Inspection (AEP-97) and joins the standardized NATO small caliber ammunition portfolio, along with the 9x19mm NATO, the 5.56x45mm NATO, the 7.62x51mm NATO and the 12.7x99mm NATO (also widely known as the .50 caliber). As a NATO standardized caliber, the 5.7x28mm caliber provides armies with the guarantee of interchangeability between ammunition from different manufacturers and operational efficiency in weapons of this caliber.

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FN P90® Personal Defense Weapon (PDW)
FN P90® Personal Defense Weapon (PDW)

This standardization also offers a new alternative in the Handgun and Submachine gun categories, implementing NATO Army Armament Group’s LCGDSS (Land Combat Group Dismounted Soldier System)’s requirements, as expressed in the «NEW NATO INFANTRY SMALL ARMS POST 2025» document*. With the Belgian Army’s sponsorship, the FN® P90 submachine gun and the FN Five-seveN® pistol will soon become the first NATO Nominated Weapons in the 5.7x28mm caliber. Coming after the FN®-designed 5.56x45mm and 7.62x51mm calibers which were standardized by NATO in 1957 and 1981 respectively, this new NATO standardization confirms FN Herstal’s leading position as a designer and manufacturer of small caliber weapon-ammunition systems. It also reinforces the Belgian company’s strategy and dedication to provide modern-day armed forces and security forces all across the world.

FN Five-seveN® Pistol
FN Five-seveN® Pistol

Fabrique National Herstal, self-identified as FN Herstal and often referred to as Fabrique Nationale or simply FN, is a leading firearms manufacturer located in Herstal, Belgium, owned by the holding company Herstal Group which is in turn owned by the regional government of Wallonia. FN Herstal originated in the small city of Herstal, near Liège. FN was established in 1889 to manufacture 150,000 Mauser Model 89 rifles ordered by the Belgian Government. It is currently the largest exporter of military small arms in Europe. Firearms designed and/or manufactured by FN include the Browning Hi-Power and Five-seven pistols, the FAL, FNC, F2000 and SCAR rifles, the P90 submachine gun, the M2 Browning, MAG and Minimi machine guns: all have been commercially successful. FN Herstal’s firearms are used by the militaries of over 100 countries.

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