according to the internet, they are made by Cooper...however, finding reviews on them is about impossible. I'm looking at a rig that has Courser AXTs already mounted, and I can't find a single review on them. I'm guessing they're brand new since the Mastercraft website doesn't even list that size as an option, but since I've seen them in person I know they exist. Look pretty cool. The tread is not nearly as beefy looking as a GY Duratrac, more comparable to a Falken AT or a Cooper Zeon LTZ.