The Paradigm boasts the latest in innovation and cutting edge materials. It offers Buck?s Shift Mechanism/ASAP® opening technology. The Shift Mechanism bolster lock not only provides a robust locking mechanism, but also provides a blade safety preventing the blade from accidentally opening. The 337 also utilizes a blade flipper for quick and easy one-hand deployment with the ASAP® assisted opening technology. Made in the USA. Bucks ASAP assisted opening knives are functionally different than automatic/switchblade knives. Switchblade knives use a button/lever in the handle to release the blade and the blade cannot be moved at all without entirely opening the knife. Knife laws change and vary from location to location. It is the user's responsibility to comply with all regulations. For more info & general definitions please visitwww.AKTI.org.