quick-change
Adjective Satellite
Meaning
adept at changing from one thing to another especially changing costumes
Source: WordNetExamples
a quick-change artist
Therefore, some machine-guns are equipped with quick-change barrels that can be swapped every few thousand rounds, or in earlier designs, were water-cooled.
Other models feature a quick-change mechanism that allows replacing the blade without tools, as well as a flip-out blade storage tray.