The CRKT M40 is a tactical and a stylish folder that is ready for your next deployment. It's made of tough 1.4116 stainless steel, and operates using CRKT's proprietary Deadbolt Lock. The knife opens smooth with the flipper, and will stay open for as long as you need. Easy to operate one handed, tough as nails, and built for a lifetime. This knife is one of it's own kind. It's met with a glass-reinforced nylon and aluminum bolster handle that's both strong and surprisingly lightweight. The magic happens when you fire it up. The deployment action is quick and smooth with a flipper and IKBS ball bearing pivot system. It locks into place with the Deadbolt and will stay there—enduring incredible stress and weight—until it's simply closed with the prominent button.