Wiktionary
disintegrating link
n. A pressed metal or plastic link, used to join cartridges for a machine gun. When the cartridge is removed during loading, the link is expelled.
Usage examples of "disintegrating link".
The heavy calliope's feed mechanism howled as the disintegrating link ammo belt blurred into the feed chute, and the penetrators shrieked downrange.
In the same instant that the death-trigger released Dimitri, Marek tumbled out of the disintegrating link with a gasp, hands clapped to his temples, and Miklos of Torenth lost the pulse in the throat of the man under his hand.