Full video including range footage is available on the History of Weapons & War streaming app:
https://forgottenweapons.vhx.tv/videos/mg4-4k
Heckler & Koch released the MG4, a new 5.56mm squad machine gun in 2001. It was adopted by the German army in 2005, and then by the Spanish and Portuguese armies in 2007. Alongside its sister weapon the 7.62mm MG5, it is H&K’s current export machine gun.
The MG4 fires from an open bolt, with a 2-lug rotating bolt locking system and a long stroke gas piston operating system. It uses standard M27 NATO links for feeding, and does not have a semiauto selector setting. Mechanically, the MG4 uses a front trunnion into which both he barrel and bolt lock independently – meaning that the quick-change barrel can be removed with the bolt in either the forward or rearward position.
As one would expect for a 5.56mm machine gun weighing 18 pounds, it is very easy to control.
Thanks to Sellier & Bellot for giving me access to this modern machine gun to film for you!
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