submachine gun
Loanword from English; refers to a compact automatic firearm. The native Japanese term is 短機関銃 (たんきかんじゅう).
See also: 短機関銃
警察はサブマシンガンを装備している。
The police are equipped with submachine guns.
サブマシンガン is the generic term for any submachine gun, while トミーガン refers specifically to the Thompson model made famous by 1920s–30s gangsters.
サブマシンガン fires smaller pistol-caliber rounds and is more compact, whereas マシンガン typically refers to a heavier rifle-caliber weapon.
Variant with interpunct; less common but seen in some contexts.
Loanword from English 'submachine gun'.