noun
semiautomatic rifle
A rifle that fires one round per trigger pull and automatically loads the next round. The term is technical and used in military or firearms contexts.
この半自動小銃は信頼性が高い。
This semiautomatic rifle is highly reliable.
Compound of 半 (half), 自動 (automatic), and 小銃 (rifle). The term is a direct calque of English 'semiautomatic rifle'.