More than 60 firearms - including rare WWI and WWII handguns - have already been handed into WA Police just several days into a national firearms amnesty.

The WA public have the chance to turn in unregistered guns and ammunition as part of the three month national firearms amnesty, which began on July 1.

It is the first national gun amnesty since the Port Arthur massacre in 1996.

The amnesty means people are able to hand over their unlicensed firearms and ammunition to police without being charged.

Police figures provided to WAtoday show as of midnight Tuesday, 67 firearms such as pistols, revolvers, rifles and shotguns had been surrendered to WA police so far.