CowCow Hop Up Bucking Combo (For Marui/WE GBB Series) we glock replacement part It produces significant reductions in

It produces significant reductions in muzzle climb and recoil and gives users more consistent performance

the manual winding system is built in front of the magazine for fast and easy operation in the mid-game

- Suitable for Tokyo Marui / KJ / WE M1911's

remove your old buffer tube

CowCow Hop Up Bucking Combo (For Marui/WE GBB Series) we glock replacement part It produces significant reductions inCCT HopUp busking is manufactured by high quality anti oil rubber material. It can prevent swelling, scratch and crash during the heavy usage. Its re designed entrance shape can better fit with nozzle movement to prevent jamming. Flared chamber allows BB feeding much smoother. The 70 60 50 options inside the package are able to enhance different level of spin velocity (70 Low 60 Middle 50 High) which is suitable for different shooting environment and