Kriss Blade Stiletto Style Knives
Assisted Opening Knife
A Spring-Assisted or Assisted-Opening Knife opens when you push on the thumb stud and the internal spring opens the knife the rest of the way. Assisted-Opening, or AO knives are sometimes consufed with switchblade knifes.
The difference between a switchblade and an AO knife is that the switchbalde can open from just pushing a button. The Assisted-Opening knife requires you to push the thumb stud to get it started.
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