The Paradigm was developed as an innovative, clip carry knife boasting high-end materials and features to enhance functionality. The 590 utilizes a blade flipper for quick and easy one-hand deployment with the ASAP assisted opening technology. Buck’s Shift Mechanism™ rotating bolster lock provides a robust locking mechanism and prevents accidental deployment. To open, glide the bolster up and activate the flipper with a flick of your finger. To close, slide the bolster up, close the blade and then slide the bolster back in place.

About The Shift Mechanism™
Our patented Shift Mechanism™ serves as an advanced locking and safety mechanism. It not only locks the blade open when extended, but also prevents accidental opening when the blade is closed.