Madbull Madbull Upgraded Black Python Inner Barrel for M19

Madbull Black Python Tight Bore Barrel - M19 (For KWA M19) Black Python is our experimental product. By using hard coating process, our barrel can provide the smoothest inner barrel surface and reinforced structure. NOTE: The choice of B.B. will be very important. We will only ensure our barrel is 6.03mm diameter.