Brandistocknoun
A short polearm that has three retractable blades concealed in its handle, which are sprung upon a thrusting action forming a three-pronged spear.
Brandistock
A brandistock (also called brandestoc, buttafuore or feather staff) was a short type of pole weapon which was used by both infantry and civilians alike, primarily police officers in Italy between the 16th and 19th centuries. Measuring some 1.5 meters (5 ft) long, the brandistock construction was unique for polearms in that it had a retractable blade.
Polearmnoun
A close-quarter combat weapon with the main fighting part of the weapon placed on the end of a long shaft, typically of wood.