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FN Herstal announces 5.7x28mm new NATO caliber for pistols and submachine guns.


| 2021

Belgium-based FN Herstal, one of the world’s leading designers and manufacturers of small caliber weapons and ammunition, and integrated weapon systems, announces 25 that the FN-designed 5.7x28mm caliber was recently recognized as a NATO caliber with the NATO STANAG 4509 (standardization agreement).
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5.7x28mm NATO caliber in the FN ammunition range (Picture source : FN Herstal)


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.

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.


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FN P90 Tactical Submachine gun (Picture source : FN Herstal)


STANAG 4509

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.

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 with the best performing and efficient small caliber ammunition concepts and designs.


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FN Five-seveN Mk2 handgun (Picture source : FN Herstal)


 

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