Thanks. Yeah, they do look like snaps but if they are then they require a lot of force to undo.I believe one of the older tigersharks I had did have a sheath that unsnapped like that. I'm not totally sure though so go easy on it. Seems like you should be able to tell by looking at it.
Glad you got it!Update: they are snaps. Just takes a little force to undo. I used a round bit driver to pry.