John Greco is not on the net yet. You need to call him directly.
I have his companion. I think you need a bomb to destroy that knife with its quarterinch stock. I took it on a camp trip and was stabbing deadfall, hacking at firewood, etc. The A2 steel keeps an edge. The knife came with a nice heavy duty, nicely made, leather sheath (by John's wife.)
I have to say, this knife is too heavy for a daily carry, except out in the woods. At the beginning of the year, he was working on knives with 3/16 stock. He has some nice fighting/tactical designs, including a 3.75 persian which would be great with a thinner stock.
Nice guy to do business with. You can call him at 502 932-3335. He has a photocopy catalog. Greco knives is in Kentucky.