Armaspec Carbine Length Gas Tube Features The Armaspec Carbine Length Gas Tube routes high-pressure gas tapped from the barrel through the gas block and back into the upper receiver where it drives the bolt carrier group rearward to cycle the action. Built specifically to the carbine-length dimension at 9.80 inches it drops into AR-15 and AR-10 pattern rifles using that gas system length without modification. Stainless steel construction gives the tube better heat and corrosion resistance than many factory mild-steel tubes which can discolor pit or crack after sustained high round counts. A reliable gas tube is one of the simplest ways to restore consistent cycling on a rifle that has started to short-stroke or feel sluggish. The tube ships complete with its own roll pin so installation only requires driving out the old pin and tube and securing the replacement in the gas block. Its silver finish matches many stainless and nickel-boron internals for a cleaner overall build appearance on a custom upper. Because gas tubes see direct exposure to carbon fouling and extreme heat every time the rifle fires a durable stainless replacement is a practical upgrade over a worn factory part. Armaspec builds this tube in the USA for shooters and builders who want a dependable drop-in fix for a worn or damaged carbine-length gas tube. Armaspec Carbine Length Gas Tube Specifications Manufacturer: Armaspec Model: Carbine Length Gas Tube Type: Gas Tube Compatible Hosts: AR-15 AR-10 Length: 9.8 Material: Stainless Steel Color: Silver Includes: Roll Pin Country of Origin: USA Available At: GrabAGun