BM-21 Grad

The Soviet-era 122 mm Grad is the world’s most ubiquitous multiple rocket launcher — 40-tube burst fire, truck-mobile, and a massed-fire mainstay in both Russian and Ukrainian arsenals, now reliant on North Korean and Czech-brokered 122 mm ammunition pipelines.

Overview

The BM-21 “Grad” (Russian for “hail”), full system index 9K51, is a truck-mounted 122 mm multiple rocket launcher that has been in continuous frontline service since 1963. A single launcher packs forty tubes and can ripple-fire them in roughly twenty seconds, saturating a grid square with some 256 kg of high-explosive fragmentation. The design trades precision for raw volume: its unguided rockets are area weapons, not point weapons. Over sixty years the Grad has been copied, modernised and produced in at least fifteen countries, making it the most widely distributed MLRS in history. In the Russia–Ukraine war it serves as the standard divisional- and brigade-level area-fire system on both sides, sustained by a global scramble for 122 mm ammunition.

Development

NPO Splav in Tula developed the 9K51 Grad in the early 1960s as the successor to the World War II Katyusha line, replacing launch rails with a cluster of 40 rifled tubes on a Ural-375D 6×6 truck Wikipedia. The system entered Soviet service in 1963 and saw its first combat use in March 1969 during the Sino-Soviet border clash on Damansky/Zhenbao Island AOAV. Massive export and foreign licensing followed: Military Balance data assembled by AOAV shows that of roughly 9,019 122 mm MLRS in active or reserve service worldwide circa 2020, 59% were Russian-made Grads or direct derivatives, 25% were Chinese copies and 4% were Czech RM-70s AOAV. The launcher migrated to the Ural-4320 diesel chassis in 1976, and Russia’s current-production successor, the automated 2B17/9K51M Tornado-G, appeared in the late 1990s and entered field units in numbers from the mid-2010s.

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