AIP Hop Up Bucking for Tokyo Marui 5.1/1911

- If your hop up adjustment is not having a significant effect on the hop up of your BB, your hop up packing is probably worn down
- Suitable for Tokyo Marui Hi-Capa 5.1 / 1911 / Model 17 / 18C Series Airsoft Gas Blow Black GBB Pistol
- As always, upgrading GBB require necessary skill & technique, consult expertise if needed

Major Color : Grey