Original U.S. WWII / Korean War Paratrooper M1 Helmet Liner by Westinghouse Military Books & Documents correctly located near the barrel's

correctly located near the barrel's muzzle on the left side

For ventilation

used during WWI

Lauterjung

and the 5th Ranger Battalion to the Dog Green sector of Omaha Beach

Original U.S. WWII / Korean War Paratrooper M1 Helmet Liner by Westinghouse Military Books & Documents correctly located near the barrel'sOriginal Item: Only One Available. The American Airborne troops used the same M1 helmet as the rest of the Army (and Marine Corps). However, the liner and chin straps were modified to prevent them from separating during parachute jumps. These were known as the M2 and M1C helmets. The first paratroopers used the M 2 (a. k. a. "D bale"). These had a modified, D shaped wire for the chin strap on the shell. This was found to be susceptible to breakage, so