The pistols used are operated with a caliber of 4.5 mm ( .177 in ) .
The pistols used are gas-driven with a caliber of 4.5 mm ( .177 in ) .
The pistols used are gas-driven with a caliber of 4.5 mm ( .177 in ) .
この文を言い直してください: The pistols used are operated with a caliber of 4.5 mm ( .177 in ) . 出力: