Rare WW 2 US Army Air Corps Bomber Crew M 3 Anti-Flak Helmet. The item "WW 2 US Army Air Corps Bomber Crew M 3 Anti-Flak Helmet" is in sale since Wednesday, October 17, 2018. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Hats & Helmets". The seller is "grisita55" and is located in Laredo, Texas. This item can be shipped to United States.