Made from good quality oil quenched steel. Easily the best Chinese springs we have tested. Zinc plated with both ends grounded. Our initial 5000 cycle test showed zero deformation or power loss.
Spring Rating: M120 / 390FPS
Length: 177mm
Wire Thickness: 1.4mm
Our springs are rated with the following test setup:
- 3/4 cylinder
- 260mm ZCI inner barrel
- Lonex hop chamber (set to zero)
- Maple Leaf Macaron 60
- 0.2g BB