Whilst all DAS systems come from the factory with parts well tightened and threadlocked, the nature of the system means that constant high impact and vibration can work some parts loose.

If the nozzle comes loose then damage to BBs and the hop bucking will be immediate, followed by failure to feed and a high chance of catastrophic failure. It recommended to check that the nozzle is in its correct position before using.

This tool is used to tighten or remove the nozzle.