Combat Grade came in both 3/16ths and 1/4"
So did the LE's, both 3/16ths and 1/4" but mine is closer to .22
the 3/16ths Combat Grade are a lot more common, but 325 isnt a bad price
the 1/4" are very difficult to find and when you do its commanding a premium
LE's are more common in 3/16ths. Two handle variations, black paper micarta, and black canvass micarta
The ZT is the rarest of them all, and the only ZT that is 1/4"