Original USAAF M3 Flak Helmet from WWII. The item "US Army Air Force WWII M3 Flak Helmet" is in sale since Saturday, June 30, 2018. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Hats & Helmets". The seller is "urbanfarmer00" and is located in Pensacola, Florida. This item can be shipped to United States.