The Zone of Alienation mod is an adaptation of the renowned AMK mod. It is built on top of a specialized variant of AMK that uses a magazine system. From this premise, it has expanded to aim to include the following:
These will be typically found on some NPCs, and in certain stashes, hastily-made ones, where it is likely that the stalker died.
They are storage items, so weapons do not directly use them, the player must use them in order to un-join them. In short they are an ad-hoc storage item for magazines.
It may also be possible in the future with the inclusion of tape for the player to create his own jungled mags.