The Lewis Gun employed by British and American forces weighed thirteen kg and will be carried by only one soldier. The French Chauchat was even lighter at 9 kg. Whilst considerably less strong than heavy machine guns, these weapons gave the infantry a crucial source of cellular automatic fireplace. In https://machguns.com/product/heckler-koch-hk33k-5-56mm-machine-gun-pre86-dealer-sample/