Degtyaryov’s infantry machine gun, aka. DP / DP-27 / DPM (modernized), with its large pan magazine, is one of the most distinctive weapons of WWII.
The pan magazine proved not to be the best idea and after the war the Soviets developed the RP-46, an ingenious device that converted the gun from magazine fed to belt fed.
Because the RP-46 is a collectable item in the US, and expensive, the crew at Forgotten Weapons have embarked on a project to reverse engineer and manufacture the device for sale. In the video below they explain how the RP-46 works and how they are going about cloning it.