The H&K G11 series started development in the late 1960s when the West German government decided to replace the G3 series of rifles. They would be intended for the Bundeswehr and other NATO partners. G11 prototypes were developed and field tested in the 1970s and 80s, with final production models finished in the late 80s and early 90s. The rifle was created by Heckler & Koch, while its unique caseless ammunition was developed by Dynamit Nobel, and target identification optic systems by Hensoldt Wetzlar. The shape is unconventional, and the design as a whole is very complex. The action of the G11 is a piece of fine German engineering. The action rotates 90 degrees after firing, and accepts the new round before rotating back 90 degrees to lock and fire again. The rifle has 3 fire modes – semi-automatic, 3-shot burst and fully-automatic. For full-auto, the rifle would shoot at a controllable rate of 600 rounds per minute, while for 3-shot burst the rate of fire would increase to 2000 rounds per minute. This high rate of fire would allow three shots to be fired before the recoil hit the shooter, and allowed for greater hit probability. The 4.7mm caseless ammunition was a solid block of powder propellant, with the bullet set inside. This block was covered in a flammable coating and had a primer glued onto the rear. There were some speculations during testing that the caseless round could crack or chip during combat, which would cause malfunctions. The rifle and its caseless ammunition were abandoned by the German government after the reunification of East and West Germany in 1990. Only 1000 units were ever produced, some of which were used by the Bundeswehr, and testing by the US Army in 1990 in the ACR program. In the end, the G36 was chosen as the replacement for the G3, and as of 2000, all development and testing of the rifle have ceased. Subscribe to our channel for more animated history videos! Get Simple History: The Cold War out today! Thank you for all your support on the Simple History YouTube channel! If you enjoy the channel, please consider supporting us at Patreon.