Under Washington State law, which of the following firearms is specifically prohibited from being carried concealed, regardless of CPL status?

In Washington State, machine guns are specifically prohibited from being carried concealed under any circumstances, irrespective of an individual's Concealed Pistol License (CPL) status. The law classifies machine guns as firearms capable of fully automatic fire, which raises significant safety and regulatory concerns. As such, these firearms are treated more stringently compared to other types like revolvers, semi-automatic pistols, or derringers.

While a CPL allows for the concealed carry of many types of handguns, it does not provide legal authority for carrying machine guns due to their classification and the potential risks they pose in public settings. The legislation surrounding firearms aims to manage and reduce the dangers associated with high-capacity, fully automatic weapons, making this distinction a critical aspect of firearm laws in Washington.