C866 Chiying's Secret

"Then this gun's noises are not small, right?" A general in charge of the firearms battalion asked.

"Indeed, this gun's noises are very loud, but it's not like there's no way to fix it." Shen Wuyou smiled mysteriously, then handed over a long and dark object.

"What is this?" Li Yishui took the item and flipped it over. The material was very special and heavy, as if it was inserted somewhere