From my knowledge, they are doing their own because they had to many Lothar reject barrels.
I don't know what they are using steel wise or rifling wise, but as long as they meet the accuracy needed, it doesn't much matter typically.
I wonder if it is their rejects they have on sale?
I seriously doubt that. They said they would need a 6 to 8 week lead time to fill the orders. I don't think the barrels are made yet. Nor do I think he would ruin his reputation like that. Catch Mark on the phone one day and it'll become obvious real quick he's a loose cannon but like TWR said, he puts out some top notch products.
I would have bought one in a heartbeat if I needed one. It was tempting even though I didn't. I rely on others to keep to keep the AR aftermarket afloat these days. I'm more of a bullets and powder consumer.
