Dark Storm Industries Gas Tube Rifle Length Silver. These Gas Tubes from the professional product experts at Dark Storm Industries are made with a type 304 stainless steel construction that features a sleek and unique looking design. Made with high quality materials the Dark Storm Industries G.S.T. Gas Tube will provide you with years of reliable use. For a great way to make sure you are using some of the best gear the shooting industry has to offer choose the Dark Storm Industries G.S.T. Gun Gas Tube. Specifications for Dark Storm Industries Gas Tubes: Manufacturer: Dark Storm Industries Color: Silver Finish: Stainless Steel Fabric/Material: 304 Stainless Steel Features of Dark Storm Industries Gas Tube Type 304 Stainless Steel Natural Silver Finish Package Contents: Dark Storm Industries Gas Tube Dark Storm Industries DSI-BRL-GTRS: Gas Tube Rifle Length Silver