The MadBull 6.03 tightbore barrel increases accuracy and velocity. This model fits the SR10, SOCOM Gear Viking Tactics and Vickers Tactical AEGs, as well as some other carbine length models.
Mad Bull's Black Python tightbore inner barrels are anodized aluminum and feature an inside diameter of 6.03mm. This tighter inside diameter and more consistent interior finish make the MadBull tightbore barrels significantly more accurate than stock airsoft rifle barrels.
The 407mm barrel will fit M4 Carbines with a mock suppressor and other similar length AEGs.