The History of FN Herstal

The Founding of Fabrique Nationale

Fabrique Nationale d'Armes de Guerre (National Factory of Weapons of War) was founded in 1889 in Herstal, Belgium, near the city of Liege—a region with a gunsmithing tradition dating back to the 14th century. The company was established by a consortium of Belgian industrialists specifically to manufacture rifles for the Belgian military. The Belgian government had decided to adopt the Mauser 1889 bolt-action rifle as its standard service rifle, chambered in the 7.65x53mm cartridge, and needed a domestic manufacturer capable of producing 150,000 rifles under license from Mauser. The consortium that formed FN included prominent Liege arms manufacturers such as Leon Nagant (of Nagant revolver fame), Henri Pieper, and Auguste Francotte. The company built a large factory complex in the Herstal suburb of Liege, a location chosen for its proximity to the Meuse River (providing water power and transport) and its deep roots in the regional arms industry. The initial Mauser 1889 contract was completed successfully, and FN quickly established itself as a reliable military supplier. The company's early product line also included bicycles, automobiles, and motorcycles—a diversification strategy common among arms manufacturers of the era. The name "Fabrique Nationale" reflected its status as a state-sponsored national enterprise, though it was operated as a private company. From these humble beginnings—a factory built around a single rifle contract—FN would grow into the most influential military firearms manufacturer in European history.

FN's Earliest Rifles: The Mauser 1889

FN's first product was the Mauser Model 1889, a bolt-action rifle that introduced several groundbreaking features. Designed by the Mauser brothers (Paul and Wilhelm) in Germany, the 1889 was the first military rifle to feature a stripper clip-loaded box magazine, allowing rapid reloading compared to the single-round loading of earlier magazine rifles. The magazine was flush with the stock, protected the ammunition, and held five rounds of the 7.65x53mm cartridge. The 1889 also introduced the concept of the "cock-on-open" bolt—as the bolt handle was lifted, the firing mechanism was cocked, reducing the force required to close the bolt and enabling faster follow-up shots. The rifle used smokeless powder, which was still a relatively new technology at the time, providing higher velocity and flatter trajectories than black powder cartridges. FN produced 150,000 Mauser 1889 rifles for the Belgian military under a licensing agreement with Mauser. The rifle served as Belgium's standard infantry weapon through World War I, where it earned a reputation for reliable performance in the mud and trenches of the Western Front. Belgian troops armed with the Mauser 1889 held the line at the Battle of Liege in 1914, delaying the German invasion and buying crucial time for the Allied mobilization. The Mauser 1889 established FN's manufacturing standards: precision machining, rigorous quality control, and the ability to produce complex military firearms at industrial scale. The success of this first contract laid the foundation for FN's century-long relationship with armies around the world.

John Browning's Deep Relationship with FN

The partnership between John Moses Browning and Fabrique Nationale was one of the most significant collaborations in firearms history. Browning, an American based in Ogden, Utah, was the most prolific firearms inventor of all time, holding 128 patents covering everything from lever-action rifles to semiautomatic pistols to machine guns. In the 1890s, Browning sought a European manufacturing partner capable of producing his designs for military contracts across the continent. He initially approached Winchester, his long-time American partner, but Winchester was reluctant to manufacture Browning's semiautomatic designs, fearing they would cannibalize lever-action sales. Browning then turned to FN, which recognized the potential of his designs immediately. The relationship began with the FN Browning Model 1899 (known in the U.S. as the Browning No. 1), a .32 ACP semiautomatic pistol that was one of the first successful autoloading pistols in history. Browning's collaboration with FN was so deep that he spent significant time living in Belgium. Between 1900 and his death in 1926, Browning made numerous extended trips to Herstal, working alongside FN's engineers and production staff. He stayed at the Hotel des Bains in nearby Spa and maintained a workshop at the FN factory where he personally supervised prototyping and testing. Browning's sons, Val and John Jr., also worked with FN, maintaining the family connection. Browning entrusted FN with his most important European designs: the Auto-5 shotgun (the first successful semiautomatic shotgun, produced by FN under license), the M1911 pistol (FN produced a licensed version for European markets), and the M1917 water-cooled machine gun. But the crown jewel of the Browning-FN partnership was the Browning Hi-Power, Browning's final design. Browning submitted his drawings for a high-capacity 9mm pistol to FN in 1925, just months before his death in 1926. The FN design team, led by Dieudonne Saive, completed the development, and the pistol entered production in 1935. Browning's relationship with FN was unique—no other firearms inventor entrusted so many landmark designs to a single foreign manufacturer. FN, in turn, became the steward of Browning's European legacy, producing his designs for militaries and civilians worldwide.

The FN Model 1910 and the Assassination of Archduke Franz Ferdinand

The FN Model 1910 was a compact, blowback-operated semiautomatic pistol designed by John Browning and manufactured by FN. Chambered in .380 ACP (9x17mm Browning Short) and .32 ACP (7.65x17mm Browning SR), the Model 1910 was innovative for its era. It was the first Browning design to use a recoil spring wrapped around the barrel, a layout that allowed a more compact frame and barrel assembly. It also featured a grip safety, a manual thumb safety, and a unique internal striker mechanism rather than an external hammer. The Model 1910 was adopted by police and military forces across Europe and became one of the most popular concealed-carry pistols of the early 20th century. But the Model 1910 is most famous for one historical event: it was the pistol used to assassinate Archduke Franz Ferdinand of Austria on June 28, 1914, in Sarajevo. The assassin, Gavrilo Princip, was a Bosnian Serb nationalist opposed to Austro-Hungarian rule. Princip carried a FN Model 1910 chambered in .380 ACP with a serial number that has been extensively studied by historians. He fired two shots at close range: one struck Archduchess Sophie in the abdomen, the other struck the Archduke in the neck. Both died within minutes. The assassination triggered the July Crisis and ultimately led to the outbreak of World War I, a conflict that killed over 20 million people. It is a remarkable historical irony that a compact Belgian pocket pistol, designed by an American inventor and manufactured by a company in its infancy, would become the instrument that set off the most destructive war the world had seen. The FN Model 1910 thus occupies a unique place in world history—not just as a firearm, but as the weapon that changed the course of the 20th century. The specific pistol used by Princip is preserved at the Museum of Military History in Vienna.

The Browning Hi-Power

In 1925, John Browning began work on his final pistol design—a high-capacity 9mm that would combine a 13-round magazine with a short-recoil, locked-breech action. The design used a staggered-column magazine (a concept pioneered by Browning for this pistol), allowing nearly double the capacity of contemporary semiautomatics. Browning submitted the design to FN shortly before his death in 1926. FN's chief designer Dieudonne Saive completed the pistol's development, refining the feed mechanism and adding a thumb safety. The pistol was adopted by the Belgian military in 1935 as the P35, better known as the Browning Hi-Power. The Hi-Power became the most widely used military pistol in history, adopted by over 90 countries and produced under license in nations including Argentina, Australia, Canada, India, Indonesia, and Venezuela. It served through World War II on both sides—the Belgian army carried it, German forces captured FN's factory and continued production for their own paratroopers, and the British SOE and Allied commandos used Hi-Powers supplied via clandestine routes. After WWII, the Hi-Power became the standard sidearm of the British Armed Forces (as the L9A1), the Canadian Armed Forces, the Australian Defence Force, and dozens of other nations. The Hi-Power served through the Falklands War, the Gulf War, the Bosnian War, and countless other conflicts. Its ergonomics were widely praised—the grip angle and shape were natural for most shooters, the magazine capacity was generous for its era, and the 9mm Parabellum cartridge was a good balance of power and controllability. The Hi-Power remained in continuous production for over 80 years, finally being discontinued by FN in 2018. Its influence can be seen in virtually every modern double-stack 9mm pistol, from the SIG Sauer P226 to the Glock 17 to the CZ 75. The Browning Hi-Power is more than a pistol—it is the pistol that defined the service handgun for most of the 20th century.

The FN FAL

In the early 1950s, FN's design team led by Dieudonne Saive developed a lightweight select-fire battle rifle chambered in the new 7.62x51mm NATO cartridge. The FN FAL (Fusil Automatique Leger—Light Automatic Rifle) was introduced in 1953 and quickly became known as "the right arm of the free world." The FAL was designed during the early Cold War, when NATO nations sought a common cartridge and a common rifle platform. The FAL used a tilting breechblock operating system, which Saive had refined from Browning's shotgun designs. It featured a 20-round detachable box magazine, an adjustable gas system that allowed reliable operation in adverse conditions, and a selective-fire capability (semiautomatic and fully automatic). The FAL was adopted by over 90 countries and manufactured under license in a dozen nations, including the United Kingdom (as the L1A1 Self-Loading Rifle), Australia, Canada (as the C1A1), Austria, Israel, Argentina, Brazil, India, and South Africa (as the R1). The widespread adoption of the FAL was so complete that it became the visual symbol of NATO infantry during the Cold War. A crucial distinction in the FAL family is the difference between "metric" and "inch" pattern rifles. Metric-pattern FALs were the standard FN design used by most nations, with metric-threaded components, a 20-round inch-pattern magazine compatible with the L1A1, and specific differences in the stock, handguard, and sight dimensions. The inch-pattern FAL (or L1A1) was the British Commonwealth variant, which used imperial-threaded components, a different magazine that was not cross-compatible with the metric version, a folding charging handle, a different bolt hold-open mechanism, and a distinctively longer buttstock. This incompatibility was a recurring logistical headache for NATO forces, as Belgian, German, and British troops could not exchange magazines or spare parts despite carrying essentially the same weapon. The FAL served in virtually every conflict of the Cold War era—from the jungles of Vietnam (where Australian and New Zealand troops used the L1A1 with great effect) to the deserts of the Middle East (Israel's FAL-based "Romats") to the mountains of Rhodesia and South Africa. Its reliability in adverse conditions, accuracy at long range, and powerful 7.62mm cartridge made it a legend. The FAL remained in front-line service with many nations into the 21st century and is still manufactured today by several companies for civilian and military markets. The FAL is arguably the most successful battle rifle ever designed.

FN CAL and FNC: The 5.56mm Transition

As the 5.56x45mm cartridge became the NATO standard in the 1970s, FN recognized the need for a smaller-caliber, lighter-weight assault rifle to replace the FAL. The company's first attempt was the FN CAL (Carabine Automatique Legere—Light Automatic Carbine), introduced in 1966. The CAL was a 5.56mm selective-fire rifle that used a rotary bolt and a gas piston system. It was mechanically advanced but proved expensive to manufacture and prone to reliability issues in field conditions. Only about 30,000 were produced, primarily for evaluation and limited military adoption. The CAL was a commercial disappointment, but it provided valuable engineering lessons that FN applied to its successor. In 1979, FN introduced the FNC (Fabrique Nationale Carbine), a significantly improved 5.56mm assault rifle. The FNC used a rotating bolt with a two-lug locking system and a long-stroke gas piston, similar to the AK-47 but refined for NATO standards. It featured a folding metal stock, a 30-round STANAG-compatible magazine (interchangeable with the M16), three-round burst capability, and a chrome-lined barrel for durability. The FNC was adopted by the Belgian military in 1979 and was subsequently purchased by Sweden (as the Ak 5, with significant modifications), Indonesia, the Netherlands, Nigeria, and several other nations. The Swedish Ak 5 variant, in particular, was extensively customized with a new handguard, stock, and sight system, becoming one of the most accurate 5.56mm assault rifles of its era. The FNC's gas system was adjustable, allowing the user to tune the mechanism for different ammunition types or suppressors. While the FNC never achieved the global dominance of the FAL or the M16, it was a solid, reliable, and well-engineered rifle that demonstrated FN's ability to adapt to the 5.56mm era. Production continues on a limited basis for military contracts, and the FNC remains in service with several armed forces today.

The M240 and FN MAG: The World's Most Widely Used GPMG

The FN MAG (Mitrailleuse d'Appui General—General Support Machine Gun) was developed by FN in the 1950s under the direction of principal designer Ernest Vervier. Entering production in 1958, the MAG is a general-purpose machine gun chambered in 7.62x51mm NATO that combines the belt-fed feed system of the German MG42 with the gas-operated, tilting breechblock action of John Browning's BAR. This hybrid design gave the MAG the high rate of fire and belt-fed reliability of the German design with the gas-system adjustability and durability of the Browning system. The MAG is built around a heavy, rapidly interchangeable barrel with a carrying handle, a 4-position gas regulator, a 1,000-meter rear sight, and a feed mechanism that can accept belts from either side. Its rate of fire is 650-1,000 rounds per minute depending on the gas setting. The MAG was adopted by over 80 countries and is manufactured under license by several nations. It has been mounted on vehicles, aircraft (as the door gun famously seen in the Vietnam War), naval vessels, and used as an infantry support weapon. The most famous variant is the M240, adopted by the U.S. military in 1977. The M240B (infantry version), M240G (Marine Corps version, removed from vehicles for dismounted use), M240H (helicopter version), and M240L (lightweight titanium version) serve across all branches of the U.S. armed forces. The M240 has been a mainstay in Iraq and Afghanistan, where its reliability in dusty, sandy conditions proved superior to some competing designs. The MAG/M240 has been in continuous production for over 65 years and shows no signs of being replaced. It is widely considered the finest general-purpose machine gun ever designed, combining firepower, reliability, and durability in a package that has proven its worth in every climate and conflict on Earth. The MAG is the machine gun that armies trust to work when everything else fails.

The Minimi and the M249 SAW

In the 1970s, FN developed a new light machine gun that would redefine squad-level firepower: the FN Minimi. Designed by Maurice V. Bourlet and Ernest Vervier, the Minimi was a 5.56mm lightweight machine gun with a revolutionary dual-feed system—it could feed from standard NATO STANAG magazines (the same magazines used by M16s and M4s) or from disintegrating link belts. This meant that any soldier in the squad could provide ammunition to the Minimi gunner in an emergency. The Minimi used a gas-operated, rotating bolt system with a fixed barrel and a quick-change barrel for sustained fire. Its 200-round plastic ammunition box could be attached to the underside, and the gun could also feed from 30-round M16 magazines. In 1982, the U.S. military adopted the Minimi as the M249 SAW (Squad Automatic Weapon). The M249 SAW replaced the M60 machine gun in the fire team and the M16A1 in the automatic rifle role. The M249 provides the infantry squad with sustained automatic fire capability at the individual level. It fires from an open bolt to prevent cook-offs during sustained fire, has a rate of 700-1,000 rounds per minute, and can effectively engage targets out to 800 meters. The Minimi was adopted by over 40 countries worldwide. It served extensively in the Gulf War, Somalia, Bosnia, Iraq, and Afghanistan. The M249 has been updated several times, including the M249 Para (with a short barrel and collapsible stock for airborne troops) and the M249E2 (with improved heat shields). While the U.S. Marine Corps began replacing the M249 with the M27 IAR (Infantry Automatic Rifle) in the 2010s, the U.S. Army continues to rely on the M249 SAW as its primary squad automatic weapon. The Minimi's dual-feed system was a true innovation that changed how light machine guns were employed, ensuring that the gunner was never without ammunition even when belts ran dry.

The FN Five-seveN Pistol and P90 PDW

In the 1990s, FN developed a completely new firearms system built around a revolutionary cartridge: the 5.7x28mm. The system comprised two weapons: the FN P90 personal defense weapon and the FN Five-seveN semiautomatic pistol. The 5.7x28mm cartridge was designed to penetrate body armor while producing low recoil and allowing high magazine capacity. It is a small-caliber, high-velocity round that achieves approximately 2,400 fps from the P90 and 2,100 fps from the Five-seveN. The cartridge uses a steel-core projectile that can defeat Level IIIA body armor, a capability previously reserved for rifles. The FN P90, introduced in 1990, is a compact, bullpup-configured PDW chambered in 5.7x28mm. It has a 50-round transparent magazine that sits on top of the receiver, with rounds feeding downward into the chamber via a rotating mechanism. The P90's compact size (50 cm overall), light weight (2.5 kg empty), and 50-round capacity made it ideal for vehicle crews, special operations, and support personnel who needed more firepower than a pistol but couldn't carry a full-size rifle. It is ambidextrous, with ejection ports on both sides, and can be fitted with a variety of optics including FN's proprietary reflex sight. The P90 was adopted by military and police forces in over 40 countries, including the U.S. Secret Service, the Canadian JTF2, and numerous European special forces units. The FN Five-seveN (pronounced "five-seven") was introduced in 1998 as the pistol counterpart to the P90. It is a lightweight polymer-framed semiautomatic with a 20-round magazine capacity, making it one of the highest-capacity standard-issue pistols available. The Five-seveN's flat-shooting 5.7x28mm cartridge offers low recoil, high magazine capacity, and the ability to penetrate body armor. It has been adopted by military and law enforcement agencies worldwide, including the U.S. Secret Service, which issued it to protective details. The Five-seveN gained notoriety in civilian markets for its controversial armor-piercing capabilities, leading to restrictions on ammunition sales. Together, the P90 and Five-seveN represent FN's most innovative 21st-century system—a purpose-built platform that redefined what a personal defense weapon could be.

The SCAR Program

In 2004, the U.S. Special Operations Command requested a new family of rifles to replace all five weapon systems then in use by operators. FN's response was the SCAR (Special Operations Forces Combat Assault Rifle) system, comprising the 5.56mm SCAR-Light (SCAR-L or MK 16) and the 7.62mm SCAR-Heavy (SCAR-H or MK 17). The SCAR system was designed around a common upper receiver with interchangeable barrels and calibers. It uses a short-stroke gas piston system—more reliable than direct impingement in adverse conditions—and a monolithic upper receiver with a full-length Picatinny rail. The lower receiver is polymer and ambidextrous, with a fully ambidextrous fire selector, bolt catch, and magazine release. Both variants can be configured in CQC (close quarters combat), standard, and long-barrel configurations by swapping barrels. The SCAR-H, in particular, was adopted by SOCOM and has served as the primary battle rifle for the U.S. Army's special operations forces. The SCAR 17S civilian version has become one of the most sought-after semiautomatic rifles in the United States, prized for its accuracy, reliability, and robust construction. While the SCAR-L was less successful (SOCOM ultimately cancelled orders due to competition from other 5.56mm carbines), the SCAR-H has proven to be one of the finest 7.62mm battle rifles ever produced.

FN Manufacturing in the United States

FN established FN Manufacturing in Columbia, South Carolina in the 1970s and has become one of the largest small arms suppliers to the U.S. military. The Columbia facility, initially opened to produce the M249 SAW and M240 machine gun, has expanded to become a sprawling complex of production buildings, testing ranges, and logistics centers. Today, FN America produces over 60% of the infantry weapons used by the U.S. Department of Defense. This production includes the M4 Carbine (FN has been the primary contractor for M4 and M4A1 production for the U.S. Army since 2012), the M16A4 (the standard rifle of the U.S. Marine Corps), the M249 SAW, the M240 machine gun (in all variants), and the M9 bayonet. FN America is the single largest supplier of firearms to the U.S. military, a position it has held for decades. The company also produces the M82 and M107 .50 caliber anti-materiel rifles for the military. FN's South Carolina factory employs over 1,000 workers and operates with strict adherence to U.S. International Traffic in Arms Regulations (ITAR), ensuring that weapons produced for the U.S. military are manufactured in the United States. FN's American subsidiary has become a vital part of the U.S. defense industrial base, particularly as the military has consolidated its small arms procurement around a smaller number of proven suppliers. The fact that a Belgian company has become the primary small arms supplier to the world's most powerful military is a testament to FN's quality, reliability, and manufacturing expertise.

Key Products Timeline

Major FN Military Firearms Comparison

MatchMyGun Verdict

FN Herstal's impact on military firearms is arguably greater than any other manufacturer. The Browning Hi-Power armed soldiers for most of the 20th century. The FAL was the symbol of NATO's Cold War defense—"the right arm of the free world." The MAG and Minimi remain the gold standard for machine guns, equipping the U.S. military and dozens of other nations. The P90 and Five-seveN pioneered a new cartridge system that redefined personal defense weapons. And the SCAR represents the cutting edge of modern rifle design. From the workshops of 1880s Liege to the battlefields of the 21st century, FN has consistently delivered the weapons that democracies rely on. The company's status as the primary small arms supplier to the U.S. military—the most demanding customer in the world—speaks to the quality of its engineering and manufacturing. FN's ability to innovate across every category of firearm—pistols, rifles, machine guns, and PDWs—is unmatched. No other company has armed so many of the world's soldiers for so long.