5KU Tokyo Marui Hi-capa 5.1 Tornado aluminum outer barrel The outer barrel is made of aluminum and has a stylish burr finish. The barrel is designed to fit the Tokyo Marui Hi-Capa 5.1 series airsoft gas pistols. This barrel has an 11mm CW internal thread at the end, which allows you to easily add accessories that fit 11mm internal threads or a 14mm CCW suppressor adapter to your airsoft pistol.
