自じ動どう拳けん銃じゅう

じ

ど

う

け

ん

じゅ

う

Meanings

1

noun

automatic pistol

Refers to a self-loading pistol that uses recoil or gas to chamber the next round, as opposed to a revolver.

oneself

動move, motion, change

拳fist

銃gun, arms

拳けん銃じゅう
拳銃 is a general term for 'handgun', while 自動拳銃 specifically means an automatic pistol.
回かい転てん式しき拳けん銃じゅう
回転式拳銃 is a revolver, which uses a rotating cylinder, unlike the self-loading mechanism of an automatic pistol.

Compound of 自動 (automatic) and 拳銃 (pistol).