It has a small seperate lever from the blade as well as the thumb stud on the blade, either only needs a light push to deploy the blade .
This is not my vid but this is one of the other styles from the range. They do quite a few: http://www2.knifecenter.com/kc_new/store_store.html?usrsearch=smith+and+wesson+black+ops+gen+3
Great solid knives for the money . You've got to hold onto it when it opens, the safety is used for either keeping the blade closed or seperately from the liner lock, stopping it from unlocking when open.
Sorry for the forum chopping the pictures up . Most forums automatically size the pic but this one crops the side off for some reason.