Yes. The LANTAC AR15 Nitride Intermediate Length Gas Tube is 13.25" in length. It is precision manufactured from stainless steel and is Black Nitrided for enhanced corrosion resistance, heat & erosion resistance over standard un-treated tubes. It comes with the gas tube as well as gas tube roll pin.
I bought one of these and it measured 13.625” and would not fit my Wilson combat barrel which uses a 13.25” gas tube.