[StavrosK]

Wait a minute, I have one of those and they're hard enough to open two-handed, your arm would break the sound barrier before you could flick this thing with enough speed to open it one-handed. Is this really considered a gravity knife?

[zhengyi13]

Flicks aren't required. The thumbhole on the blade is there specifically to enable a one-handed opening, and would likely therefore qualify as a "gravity knife", whatever we might think of such a classification.

[KGIII]

According to the article, flicks are the requirement. It's a long article and they don't get into it until quite a ways down.

One handed would be okay, so long as it can't be flicked open by officers who practice flicking knives open on a regular basis and have pretty much perfected the art.

But, yes, the flicking is a requirement - according to the article.

[emdubs]

Grab the blade and flick it while holding the blade. The weight of the handle will pull it open (at least partially). That is enough to qualify under this law unfortunately.

[maxerickson]

Even holding the blade?

[StavrosK]

You can't really hold the blade, the blade in mine is so recessed that you can only open it by putting your thumbnail in a notch on the blade, but which is pretty hard and takes effort. I can definitely not hold the entire thing from the bit of blade that protrudes.

[dunham]

It looks like the linked knife has a handle sticking out of the blade specifically for grabbing on to. Perhaps you have a different model?

[StavrosK]

Ahh, I missed that that was a handle. Mine looks more like this:

https://www.swiss-knife.com/media/catalog/product/0/_/0.9523...

When the blade is folded, only the little notch sticks out. Very hard to open.