It's Ti with a steel wear cap:
It's the steel that's rubbing against the aluminum scale...I think.
No flippers that aren't assisted, but I still practice good index finger technique.
UPDATE:
I threw some Gun Butter lubricant on the locking bar end and ball and have been flipping it like crazy.
Using a plastic kid's knife to undo the lock bar and trying to wear it into the back of the blade.
Definitely has smoothed out and I can almost unlock the bar with my thumb.
Hopefully it just needs to break in but holy hell, out of the box it was sucking.
Not what I was expecting compared to the smoothness of a Sypderco or a Benchmade which cost half as much.
Keeping my fingers crossed since it's definitely a cool knife.