While using this kit, it allow to adjust the power of the hammer spring in wide range. Suitable for competition shooter to wargame player. Also applicable and allow fine tune the power for different temperature condition. Work great and allow more custom tuning with UAC High Flow Valve For Hi-capa and Airseal Rubber. 1 soft & 1 hard spring suitable for different condition. 10 spacer for fine tuning.
- Metal Construction
- replace the original part
- suitable for Marui Hi-Capa GBB pistol