Who knows? Mark is claiming proprietary secrets but I figure it's some kind of voo doo or black magic.
An MOA light weight barrel for $199 was just too cheap to start getting picky.
Rearden Steel... really?
Atlas Shrugged anyone? The 12" Stealth barrels have an 0.092 gas port. A rifle gas port in a carbine barrel, ingenious. ML is certifiable and he can say those barrels are made of whatever he wants. It may have been hard to pass one up at $199 but they certainly aren't worth $495.
