WII TECH - CNC Aluminium Enhanced Hop-up Compression Bar for Tokyo Marui M4 GBBR Series

WII TECH - CNC Aluminium Enhanced Hop-up Compression Bar for Tokyo Marui M4 GBBR Series

This aluminium hop-up compression bar is made by precision CNC process for Tokyo Marui M4 GBB/MWS. This bar replaces the original Tokyo Marui hop-up compression bar and rubber hop-up rivet. The modification of this bar improves the hop up performance and reliability.