WII TECH - CNC Brass High Precision Barrel Bushing for Tokyo Marui M4 GBBR Series

WII TECH - CNC Brass High Precision Barrel Bushing for Tokyo Marui M4 GBBR Series

This barrel bushing is made by precision CNC process. It has high precision T.Marui dimension with smooth surface. It's strengthen construction provides outstanding durability. Therefore it carries the barrel set perfectly into the upper receiver, and it also keep the barrel set tightly into the upper receiver all the time.