Madbull Black Python ll 6.03mm Tight Bore Barrel - 229mm Pistol Cases Features three velcro panels for

Features three velcro panels for patch attachment

One-Touch Strobe

They fit most M4/M16 variants as well as G&G's GR15/GR16 series of AEGs

ETU (enhanced trigger unit) improves trigger response and cyclic rate

Madbull Black Python ll 6.03mm Tight Bore Barrel - 229mm Pistol Cases Features three velcro panels forA precision 6. 03mm inner barrel from Madbull. The Black Python is a tried and tested inner barrel. By using a hard coating process, the barrel provides the smoothest inner barrel surface possible and and overall reinforced structure. Its also complete with a great looking black finish. Precision made in Hong Kong. Features a 6. 03mm inner diameter and total length of 229mm. Suitable for barrel lengths as found in short M4s MP5s and AK Betas. Improve