I realize that. Realistically, this weapon is deployed in a two man team. The weapon is carried dismantled, and assembled at site. But because I made this for fun... 1 man will carry and use it. And it is over 5 feet long (1.8m). As I stated before, this version is the 20x81mm version. There are interchangable barrels allowing for 14.5x120mm russian, and 12.7x??mm (primarily for training aka .50cal) cartridges. I haven't heard of a 7.62 version.