As long as there have been radios in the Army it has been the unwritten rule that the smallest guy carries the radio.

The rifles are the trusty M1 Garand, caliber .30, the standard rifle of the Army from 1936 or so until 1957 or so. Of course, National Guard units would have them much longer. This rifle did much to bring us victory during WWII; it is an 8 round, semi-automatic weapon. The German and Japanese (and our British allies) were typically armed with bolt-action rifles with much slower rates of fire. This is a wonderful, legendary rifle, much prized by collectors and shooters, and can be purchased today from the government.

The caps are the ill-conceived Ridgeway cap, a rigid, non-collapsable thing that would get crushed in a duffle bag. It was replaced by an also ill-conceived soft cap that lacked any military appearance and any recognizable shape. Military uniforms are designed by committees.