fixed bayonet; bayonet-fitted gun
Historical term for a firearm with a permanently attached bayonet, used in early modern warfare.
At the end of the Edo period, bayonet-fitted guns were used by some troops.
銃剣 is the modern term for a detachable bayonet, while 剣付き鉄砲 refers to a firearm with a fixed, often non-detachable, bayonet.
Compound of 剣 (けん, 'sword, bayonet'), 付き (つき, 'attached'), and 鉄砲 (てっぽう, 'gun'). The exact historical derivation is uncertain; the term likely emerged in the context of early modern Japanese military terminology.