AIP sear spring for Marui Hi-capa Series

- Replace original stock sear spring with this lighter one- Suitable for Tokyo Marui Hi-Capa 5.1 Series Airsoft Gas Blow Black GBB Pistol- Supreme Quality & Lightweight Achieved-Make every trigger pull faster & lighter, especially design for IPSC player-NOTE: As always, upgrading GBB require necessary skill & technique, consult expertise if needed