Original U.S. Vietnam War Unissued Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size Regular Ancient left an iron bolt-eye extending

left an iron bolt-eye extending past the muzzle crown

The extension includes an ejector

won the Medal of Honor for bravery in the battles around Chattanooga

These may require fitting

graduated from 200 to 2

Original U.S. Vietnam War Unissued Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size Regular Ancient left an iron bolt-eye extendingOriginal Item: Only One Available. This is a United States Helicopter Flight Helmet type SPH 4 made by Gentex. The helmet is in overall excellent, complete condition with the liner, headset, tinted visor and boom microphone. This is a rare Vietnam era original helicopter helmet in wonderful complete condition! The Sound Protective Helmet 4 (SPH 4) is a derivative of the US Navy SPH 3 and was used by the US Army since 1970. The SPH 4 is a single visor