PKM
The PKM is the Soviet Union's workhorse 7.62mm general-purpose machine gun — a belt-fed, open-bolt design that has armed infantry squads, vehicle mounts, and tripod emplacements across more than five decades of continuous combat from Afghanistan to Ukraine.
The Soviet Union's workhorse 7.62mm general-purpose machine gun — a belt-fed, open-bolt design that has armed infantry squads, vehicle mounts, and tripod emplacements across more than five decades of continuous combat from Afghanistan to Ukraine.
Overview
The PKM (Pulemyot Kalashnikova Modernizirovanniy — Modernized Kalashnikov Machine Gun) is a 7.62×54mmR general-purpose machine gun that has served as the standard company- and battalion-level sustained-fire weapon of Soviet and Russian forces since 1969. Gas-operated, open-bolt, and belt-fed, it balances portability (~9 kg with bipod) with full-power rifle-caliber range and penetration. With well over one million PK-pattern guns produced across original Soviet manufacture, licensed copies, and foreign variants, the PKM is one of the most widely fielded GPMGs in history, according to Wikipedia, and its modernized successor the PKP Pecheneg — introduced in the late 1990s — remains in front-line Russian service today.
Development
The PK machine gun was designed by Mikhail Kalashnikov's team and entered Soviet service in 1961, drawing on the belt-feed mechanism of the earlier Goryunov SG-43 and the rotating-bolt locking system of the AK-47. The modernized PKM followed in 1969, distinguished by a lighter, fluted barrel, a smoother feed mechanism, and extensive use of stampings that reduced weight to roughly 9 kg — materially lighter than the 7.62mm NATO GPMGs it faced. After the dissolution of the USSR, production of the NSV heavy machine gun was stranded in newly independent Kazakhstan, prompting Russia's Degtyarev plant (ZID Kovrov) and TsNIITochMash to develop both the Kord HMG and, in parallel, an upgraded PKM. The result was the PKP Pecheneg (GRAU 6P41), accepted into service around 1999, which replaced the quick-change barrel with a fixed, forced-air-cooled heavy barrel designed to sustain long bursts without a barrel change, per GunRF.
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