In order to improve the performance of the spring that we redesigned this product. The installation method has changed because of the design changes. CCT website has been updated as below:
*Installation Method*
CCT NP1 Nozzle Spring is a little longer than the original one. Need to use the sticky tape to temporary fixing the spring. The sticky tape can be removed after BBU is installed.
Good seller!!
It lets me short stroke it more without feeling problem