M1947 Johnson auto carbine
Encyclopedia
The M1947 Johnson auto carbine is a semi automatic derivative of the actual machine gun. It was intended as a replacement of the M1 rifle
but not accepted.
M1 Garand
The M1 Garand , was the first semi-automatic rifle to be generally issued to the infantry of any nation. Called "the greatest battle implement ever devised" by General George S...
but not accepted.