Funny, fixed blades seems to be OK over here. Just says "no knives with blades longer than 6 cm". Also doesn't seem to mention anything about non-locking folders only. Also, nothing about "no wider than .5 inches" from edge to spine. Could possibly carry my Dragonfly 2, or a Böker Plus Gnome. Not the Mini-Grip though, which is funny, what with it having a less stabby point and all. But, I guess that .51 inch makes a huge difference there.