ルイス軽機関銃
The lighter Lewis gun was adopted for land and aircraft use in October 1915. The Lewis gun had the advantage of being about 80% faster to build than the Vickers, and far more portable. By the end of World War I, over 50,000 Lewis Guns had been produced; they were nearly ubiquitous on the Western Front, outnumbering the Vickers gun by a ratio of about 3:1.