The Soviet machine gun that became a global helicopter hunter

Countries & Cities · Published 21 October 2026 · Updated 22 October 2026 Swipe more like this →

In short: From the Korean War to modern drone warfare, the ZPU has remained a staple of asymmetric combat. This Soviet anti-aircraft mount is prized for its simplicity and devastating firepower, capable of being deployed in seconds to strike low-flying targets across every continent.

Utilising the Soviet 14.5×114mm KPV heavy machine gun as its foundation, the ZPU (zenitnaya pulemotnaya ustanovka) constitutes a range of towed anti-aircraft weapons. While its lineage traces back to a dedicated mount developed by Fedor Tokarev in 1928—which served until 1945—the modern ZPU series entered service in 1949. It exists in three primary configurations: the single-barreled ZPU-1, the double-barreled ZPU-2 (and its lighter airborne variant ZU-2), and the quadruple-barreled ZPU-4.

The weapon's enduring utility lies in its mechanical versatility. The ZPU-4 utilizes a four-wheel carriage that can be lowered onto firing jacks in 15 to 20 seconds, while the ZPU-1 can be broken into 80-kilogram pieces for transport over rough terrain. Despite having a maximum rate of fire of about 600 rounds per minute, practical limits often keep it around 150 rounds per minute. Its ammunition variety is extensive, including API (tungsten carbide core) and I-T (instantaneous incendiary) projectiles.

Historically, the ZPU gained notoriety as one of the most dangerous threats to U.S. helicopters during the Vietnam War. In more recent decades, it has seen widespread use by militias in Libya, Syria, and Yemen, often mounted on pickup trucks known as 'technicals.' Even today, its relevance persists; in 2022, a Czech company developed the MR-2 Viktor, which adapts a ZPU-2 with modern sights to combat low-altitude unmanned aerial vehicles.

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