Suitable for Marui Hi-Capa 5.1 / 4.3 Series GBB Pistol
- Best use in Conjunction with Metal Slide/Outer Barrel High Flow Blowoff Valve
- Recoil Spring produces stronger & faster blowback feel
- Hammer Spring increase the hammer tension resulting higher gas output, i.e. more power fps

Major Color : Chrome
Built Material : Metal
Item Code : AIP031