Brand is Spyderco.
Model varies, lately Endura.
Often a Tasman Salt, Delica, or Pacific Salt instead, depending on whether I want yellow vs black, serrated vs plain, larger vs smaller. So sometimes I carry two.
"He said he fired a burst at the chest and if they didn't fall fast enough, he fired a burst at the face. He never needed to reload and had enough on board so if he missed a shot or two he could catch up in the fight. " -Gabe Suarez, 2008