TiLock - Locking Systems
The TiLock is designed by Grant and Gavin Hawk in conjunction with Chris Reeve Knives for exclusive integration into a unique folder called the TiLock, which uses a Titanium bar to "tie" blade and handle.
The lock is exclusive to this knife, which is not an uncommon thing for G&G Hawk lock designs. It operates via a Titanium tension bar that rolls along the outer edge of the handle around the pivot. The bar has a dumbell at the end of it that functions as both the lock bar and detent when open. It's a very slick system, and quite fun to use!
My video review shows it in action here: http://youtu.be/CyngwBR87Rk?t=49s