AIP 120% / 140% Enhanced Recoil & Hammer Spring For Hi-Capa 5.1/4.3

- Suitable for Tokyo Marui Hi-capa / 1911 Series Airsoft Gas Blow Back GBB Pistol
- Recoil Spring produces stronger & faster blowback feel
- Hammer Spring increase the hammer tension resulting higher gas output, i.e. more power fps
- NOTE: As always, upgrading GBB require necessary skill & technique, consult expertise if needed.