It's important to keep your airbrush in tip top condition and clean as a whistle for optimal workability.
Changing out the Needle, Nozzle & Nozzle Cap is an easy and inexpensive way to breathe new life into your airbrush gun.
Sometimes other parts are needed to improve a gun's performance and sometimes, because they are so small, they go down the drain...they are slippery little suckers! the Trigger and Cup (Aux Lever) are also available here.
Maybe you need a Nozzle Wrench, to unscrew your nozzle for cleaning or replacement.