I don't know if ProTech makes an OTF off the top of my head or not.
They do it's called the Dark Angel. Single action OTF. It's also one of the knives used by Heath Ledger's Joker in the Dark Knight. Gets a good bit of screen time too
That was a Rob Dalton Cupid
Messed with a few as a kid, but could never get around the thought of: if this shot out inside my pocket...what would it hit?
[video=youtube_share;3rAFMC2O9dQ]https://youtu.be/3rAFMC2O9dQ[/video]