The Schrade Out the Front Viper Assisted Open Knife is the third generation of OTF knives from Schrade. This model features a bead blast finished bayonet style blade that is sharp on both edges. This fast opening assisted knife slides open when you begin the process by pressing the slide trigger on the side. The blade locks up incredibly tight when open. On the front of the extremely comfortable, thin handle, there is a toggle safety that shows a red dot when it is "live" and ready to fire. To close the blade, you slide the blade lock which releases the blade--which you then slide down and reset using the slide trigger. This is one of our favorite spring assisted out the front knives. It comes with a deep pocket clip and a glass breaker is built into the base of the handle. Get fast--get the Viper!