Madbull 6.01mm T6 7075 Aluminum Ultimate Tightbore Barrel 40

The new Ultimate series puts to use a new manufacturing process which promises and thicker, stronger barrel with more precise tooling to produce a more constant and precise inner diameter yet still be fully compatible. This model is designed to fit the AK-47 AEGs and serves as a tightbore barrel to improve the air seal for more accuracy, stability, reliability and some power.