Smith & Wesson 3.5" Spring Assisted Folding Pocket Knife & Rescue ToolSmith & Wesson 1st Response 3. 5? Spring Assisted Folding Pocket Knife with Serrated Tanto Blade The Smith & Wesson has a 3rd Generation 1st Response M. A. G. I. C. Assisted Opening Liner Lock Folding Knife & Rescue Tool. It's made with a black stainless steel double hollow ground serrated recurve tanto blade. It features ambidextrous thumb knobs and jimping, textured, and a designed black nylon fiber handle with a safety lock, spring loaded glass