n the 1970s modern production methods stabilized, and samples found from this time are typical of automatics made up through the year 2000. In the 1980s, sales of automatic knives made a comeback with the concept of kit knives, allowing the user to insert a spring or build a knife from a parts kit. Since no law prohibited switchblade parts, this assembly was the purchaser's risk until this loophole was prohibited in most of the United States. In Britain, the folding type of switchblade is commonly referred to as a flick knife. This type of knife has a simple opening mechanism: Running parallel with the spine and fixed at the butt, is a tapering steel bar which is depressed by the blunt part of the blade (ricasso) when it is closed. A pin locates in an indentation on the ricasso and keeps the knife closed. Pushing the button lifts the pin and allows the blade to flick out. The blade automatically locks in the open position because another pin on the back of the blade engages with a hole on the spine of the knife. Pushing down on the guard lifts the spine and releases the blade so it can be closed. Knives with an automated opening system are illegal under UK law. Today there are a fair number of knife companies and custom makers who build high-quality automatic knives for military, emergency personnel, and for knife collectors.[2] Some famous automatic knife manufacturers include Microtech Knives, Benchmade, Severtech, Gerber Legendary Blades, Mikov, ProTech, Dalton, Boker ...
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