NATO may field some of the most advanced military technology on the planet, but scattered across the alliance are weapons old enough to have served multiple generations of soldiers. Machine guns from the 1930s, tanks from the 1960s, and aircraft older than many of the pilots flying them continue to play real roles in defense planning. Here, 24/7 Wall St. is taking a closer look at the oldest weapons used by NATO.
To determine the oldest weapons used by NATO, 24/7 Wall St. reviewed various historical and military sources. We included a variety of weapons, spanning small arms to naval vessels. We included supplemental information for each as well regarding the type, year introduced, who it is used by and why this weapon matters to NATO.
Some of NATO’s most reliable weapons are also its oldest. While modern systems dominate headlines, many Cold War and even World War II-era platforms continue to play meaningful roles across the alliance. These weapons endure because they remain effective, affordable, and adaptable to new mission demands. By highlighting the oldest systems still in service, we gain some insight into how NATO balances modernization with practicality, why certain designs prove nearly impossible to replace, and how legacy hardware continues to support frontline operations in a rapidly evolving geopolitical landscape.
NATO fields some of the world’s most advanced military technology, yet many of its member states still rely on weapons designed half a century ago—or even earlier. From machine guns built before World War II to aircraft older than most pilots flying them today, these legacy systems remain firmly in service. Their continued use highlights a surprising truth: age doesn’t always diminish battlefield value.
Despite their age, many of these weapons refuse to fade away because they continue to do their jobs exceptionally well. Some are extremely reliable, others are inexpensive to maintain, and many have proven themselves in combat for generations. Their durability and effectiveness make them too valuable to discard, even as more modern systems become available.
The longevity of these systems isn’t due to nostalgia—it’s because modernization programs have kept them combat-ready. Updated optics, engines, avionics, sensors, and digital fire-control systems allow hardware from the 1940s through the 1970s to operate alongside modern platforms. In some cases, upgraded legacy weapons remain more practical than expensive new designs.
NATO militaries operate an unusual blend of cutting-edge stealth fighters and Cold War-era tanks, artillery, and aircraft. This mix reflects both the alliance’s diverse budgets and the simple fact that some older designs still outperform expectations. On modern battlefields, these veteran systems often fill roles newer platforms weren’t designed for.
The continued presence of these older weapons highlights broader strategic priorities within NATO: cost efficiency, logistical simplicity, and proven real-world performance. Many of these systems remain in service not because of neglect, but because they continue to meet mission requirements. Their longevity underscores how NATO balances modernization with practicality.
The M2 Browning, introduced in 1933, remains one of the most enduring weapons in NATO service. Its .50 caliber power, rugged design, and ability to operate in extreme conditions make it indispensable for vehicles, aircraft, and defensive positions. Modern upgrades like upgraded mounts and optics compatibility ensure its continued relevance.
The FN MAG, known as the M240 in the U.S., introduced in 1958, is a cornerstone of NATO firepower. Its reliability in harsh environments and accurate sustained fire have kept it in frontline service for decades. Modern lightweight models and accessory rails extend its battlefield lifespan.
The AKM rifle, introduced in 1959, is used by Poland, Lithuania, Latvia, and Estonia (legacy stocks). Its rugged, simple, and reliable design makes it a viable backup system even as nations transition to newer rifles.
The Carl Gustaf recoilless rifle, introduced in 1946, has served NATO forces for generations due to its adaptability. With ammunition options ranging from anti-armor to smoke and illumination, it remains a powerful support weapon. The latest lightweight versions ensure continued widespread use.
The Browning Hi-Power pistol, introduced in 1935, remains in limited NATO service. Its high-capacity design and proven performance made it a standard for decades. Some units still rely on remaining stocks for training or secondary duties.
The MG3 general-purpose machine gun, introduced in 1960, is a modernized continuation of the legendary MG42. Its extremely high rate of fire and battlefield reliability keep it relevant in NATO arsenals. Updated components and optics compatibility maintain its operational value.
The M72 LAW, introduced in 1963, remains a popular shoulder-fired weapon due to its simplicity and portability. Ideal for infantry requiring quick anti-armor or bunker-breaching capability, upgraded versions remain in NATO inventories.
The