This high tensile steel enhanced rotor is made by precision CNC machines.  It fits Glock 18C GBB pistol of T.Marui. This steel rotor is an enhancement item which has difference dimension from the T.Marui dimension.  It is specially made for professional shooter and competition needs because:

1.High precision dimension increases shooting reliability;
2.Dimension is modified for increasing sensitivity and stability of hammer. It also reduces risk of misfire.  Therefore, it has difference dimension from the original T.Marui rotor;
3.High tensile steel strengths construction, increases durability and reliability;
4.Smooth surface finishing is used to reduce friction inside your pistol and improve smoothness of blow-back movement.