It looks like an MG-42 style MG - hell, the ammo even looks like 8mm.
In the old German style links, each belt is made of 50 "C" clips open at the bottom. Each C clip is held to the next one with a spring shaped multiple loop. To connect these short belts into longer ones, the end "c" links nestle in each other and held together with an 8mm round. the expended belts will fall apart after the 50 rounds were fired.
There is a "starter tab" belt that hold 3-4 rounds, and has a straight tab 3-4" long that you can stuff through the gun to allow that first round to catch in the feed mechanism. Nothing is required to hang out the other side like this.
Gotta admit that the picture is pretty warlike.
US style steel links are self contained and are held together by the round in between them. No expended belt hangs out of the gun that uses these links.
I understand the Germans adapted their guns postwar to use either the Kraut method or the US style links.