Following the joint US Army and Marine Corps designed M51 Flak Jacket, the M-52 used aluminum plates instead of Doron.

[1][2] The M-1952A Body Armor was an 8.5 pound vest made up of twelve layers of flexible laminated nylon.

[3] It had epaulets, a zip front closure and adjustable elastic draw cords on each side.

[3] They continued to use it throughout the 1958 Lebanon Crisis and during the early stages of the Vietnam War.

[5] The U.S. Navy used them quite heavily in Vietnam, including with their Mobile Riverine Force.