Promote your right to carry. The FS-3 Don’t Tread on Me is an OTF knife whose dual action D2 steel blade comes in a variety of styles. The high-grade aluminum alloy handle features the Gadsden flag slogan on one side and snake symbol on the other. Blade deployment and retraction powered by pushing or bulling the same control switch. All CobraTec knives are backed by our LIFETIME WARRANTY.