sentences:  Though designed as a simplified alternative to the M1919 series, it is of almost identical weight.The weapon is fitted with a quick-change barrel, pull-chain charging assembly, and can be made to feed from the left or the right hand side (though the left-hand feed is more common).An attempt to make the M73 useful as a flexible infantry gun saw the weapon fitted with sights and a pistol grip trigger as the "Machine Gun, 7.62-MM, M73C".