Madbull 6.01mm Tight Bore Barrel - 363mm Type_Knocker Valve Features a rubberised buttplate for

Features a rubberised buttplate for optimum shooting comfort

Weighs in at a respectable 790g

These goggles have an even higher resistance to fogging up than even the X1000's

It has the same power as 134a gas and will not damage your gun

Madbull 6.01mm Tight Bore Barrel - 363mm Type_Knocker Valve Features a rubberised buttplate forA precision 6. 01mm inner barrel from Madbull. The Black Python is a tried and tested inner barrel. By using a hard anodized coating, the barrel provides the smoothest inner barrel surface possible and and overall reinforced structure. Its also complete with a great looking Titanium colour finish. Precision made in Hong Kong. Features a 6. 01mm inner diameter and total length of 363mm. Suitable for barrel lengths as found in the M4, SR16 and SG551.