Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet - Size Extra Large Resin Guns and Grenades and was probably changed during

and was probably changed during the later bolt conversion

augmented by British

in Des Moines

32 Rimfire

Year of Manufacture: circa 1895

Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet - Size Extra Large Resin Guns and Grenades and was probably changed duringOriginal 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, visor, microphone, and tint visor. The helmet is marked X Large This is a rare Late Vietnam War era original rare 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