Original U.S. Vietnam War US Navy Helicopter Combat Support Squadron 9 Gentex SPH-4 Helicopter Helmet - HC-9 British Helmets Large enough to engulf the

Large enough to engulf the entire weapon including butt stock these certainly provided extreme protection from the elements

Barrel length: 21 in (530 mm)

and is complete

Engine 4-cyl

Original U.S. Vietnam War US Navy Helicopter Combat Support Squadron 9 Gentex SPH-4 Helicopter Helmet - HC-9 British Helmets Large enough to engulf theOriginal Item: Only One Available. Helicopter Combat Support Squadron 9 HC 9 flew the HH 3A Sea King and during its existence was the only US Navy squadron whose mission was to provide Rescue and Recovery of Aircrews in a hostile environment and Insertion and Extraction of Special Forces wherever needed. From 1990 their mission was assumed by HSC 4 and HCS 5. This is a United States Helicopter Flight Helmet type SPH 4 made by Gentex. This is an early