For sale: 1 HGU-55 size Large. After complete overhaul and repainted as new.GBP 22.50 / Worldwide GBP 35. The item "Flight Helmet pilot GENTEX HGU-55 size Large" is in sale since Monday, September 27, 2021. This item is in the category "Collectables\Militaria\Surplus/ Equipment\Helmets/ Hats". The seller is "amazingyesterday" and is located in Harlingen. This item can be shipped worldwide.