pivot pin? it is a sherade switch it it was a good knife lasted a ling while then i was pissed and chucked it into a piece of wood then i thought W.W.N.D so i threw it down over and over again then twisted it trying to break the tip off in the end i used a piece of firewood to hammer the top through the wood then i did a "how fat am i" test and it broked XD Logan sedated for you're protection