YOU SAID:
American machine gun designed to be extremely lightweight compared to the standard saw and uses a lightweight experimental ammunition
INTO JAPANESE
アメリカの機関銃は、標準的な鋸に比べて非常に軽量に設計されており、軽量の実験弾薬を使用しています
BACK INTO ENGLISH
American machine guns are designed to be very lightweight compared to standard saws and use lightweight laboratory ammunition
INTO JAPANESE
アメリカの機関銃は、標準的なのこぎりと比較して非常に軽量に設計されており、軽量の実験室用弾薬を使用しています
BACK INTO ENGLISH
American machine guns are designed to be very lightweight compared to standard saws and use lightweight laboratory ammunition
That didn't even make that much sense in English.