15 September 2023
by Amael Kotlarski
HK421 7.62 mm machine gun, right-hand side. (Janes/Amael Kotlarski)
Heckler & Koch (H&K) debuted its new lightweight 7.62×51 mm chambered machine gun at DSEI 2023 in London.
The new weapon has the HK421 designation and is derived from the company’s MG5 series of 7.62 mm general-purpose machine guns (GPMGs). Compared with the MG5A2 – the standard infantry model fitted with a 460 mm-long barrel – the HK421 with its 421 mm-long barrel (the longest currently on offer) is approximately 2.7 kg lighter. The company also offers a 330 mm-long barrel, which gives the weapon an approximate weight of 8.3 kg (9 kg with the ‘para butt-stock’). When fitted with the 421 mm barrel, the HK421 has a maximum overall length of 995 mm and a minimal overall length of 810 mm.
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