HU MrHop 50° rubber band for TM/WE/KJW GBB replicas

HU MrHop 50° rubber ring for TM/WE/KJW GBB replicas

A high-quality 50° Hop-Up rubber designed for Tokyo Marui/WE/KJW replicas and VSR-10 replicas. The set also includes a special ring to improve the seal. The special design of the rubber and the adjustment screw has a positive effect on the BB’s flight trajectory.