「大丈夫！艤装じゃなくて個人携行火器だから！」　　　…無反動は個人携行火器じゃないけどね！部隊火器だけどね！

"It's all right since this isn't a ship's equipment but instead small arms!"

...But recoilless rifle isn't small arms! It's a crew-served light weapon!