The mechanism behind a Spyderco compression lock would sound complex, but the operation is quite simple. As the name suggests, the compression lock has a split liner inside the handle, having a leaf-like spring. Once you press the metal liner, the compression spring will shift, deploy and secure the blade. The compression spring achieves the locking by preventing your blade from moving back without turning the spring out of the way. While the stop pin ensures the blade does not open up past the set pathway. In the end, the compression lock guarantees a secure and easy operation without worrying about the blade movements.