CCT Nozzle Valve Spring constructed with high strength spring steel and hard coating to enhance it durability and stability. 2 different lengths of spring option lets professional user able to equip the proper one to optimise the performance. White Blue Spring is pre-set as balance on Joule power and recoil. Black spring is around 10% increment on Joule power.

COWCOW Technology Nozzle Valve Spring for Tokyo Marui Hi-Capa GBB
Made from High Strength Spring Steel
Hard Coating Prevents Corrosion
2 different options of spring (White Blue and Black)
Effectively balance the Joule power and recoil
Suitable For Tokyo Marui Hi-Capa Series Airsoft Gas BLow Back GBB Pistol