History
Production of the first postwar variant of the MG 42 chambered in a standard NATO caliber (designated the MG 1) was launched in 1958 at the Rheinmetall arms factory as requested by the Bundeswehr. Shortly thereafter, the machine gun was modified, receiving a chrome-lined barrel and sights properly calibrated for the new round; this model would be named the MG 1A1 (known also as the MG 42/58).
A further development of the MG 1A1 was the MG 1A2 (MG 42/59), which had a heavier bolt (950 g, compared to 550 g), a new friction ring buffer and was adapted to use both the standard German continuous DM1 ammunition belt and the American M13 disintegrating belt. Further improvements to the weapon's muzzle device, bipod and bolt resulted in the MG 1A3.
Simultaneously, wartime 8×57mm IS MG 42 machine guns that remained in service were converted to chamber the standard 7.62x51 mm NATO round and designated MG 2.
In 1968, the MG3 was introduced and entered production. Compared to the MG1A3, the MG3 features an improved feeding mechanism with a belt retaining pawl to hold the belt up to the gun when the top cover plate is lifted, an added anti-aircraft sight and a new ammunition box. MG3s were produced for Germany and for export customers by Rheinmetall until 1979. Some additional production of the MG3 in Germany was carried out by Heckler & Koch. The MG3 and its variants all share a high level of parts interchangeability with the original MG 42.
Read more about this topic: Rheinmetall MG3
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