Heckler & Koch HK121

The HK121 is a 7.62×51mm NATO general-purpose machine gun manufactured by Heckler & Koch. The weapon is intended as a replacement for the Rheinmetall MG3. This weapon resembles the 5.56×45mm NATO Heckler & Koch MG4 light machine gun which was adopted into German military service in 2005. In June 2013, it was announced that Germany is conducting testing and evaluation on 65 samples and plan to purchase at least 7,114 of the machine guns for the Bundeswehr during 2014-2017, in a deal that over time could grow to 12,733 HK121.