Madbull Black Python 6.03mm Tight Bore Barrel (590mm) For AEG
Precision Barrel for PSG-1 Series Electric Rifle By using a hard coating process, MadBull Black Python barrels can provide the smoothest inner barrel surface and a reinforced structure High grade precision barrel at 6.03mm diameter for extra power and accurate shooting

What is different from Ver 1 and Ver 2?
Based on the feedbacks from users, we did a lot of imporvement on Ver 2.
Ver 2 is using new machine and new coating process.
Ver 2 is using different packing (10pcs packing) to prevent "bending" during the shipment.