Reply To: Marmot Militia barrels at last.
Mike Sayers is the barrel maker for TJ barrel liners. He makes blanks only. Jim buys blanks from Mike then machines them to fit marauder rifles, pistols, and the Flex and warp.
You can have Mike make you a custom hammer forged mandrel for what ever twist and bore dimensions you want. I believe they cost around $400. Not sure if Jim has had his own mandrel made and used to make the blanks he uses or if he just uses sizes and twist Mike has available?