This barrel is already threaded for a Seekins Hit action it just needs to be chambered. it's a 24" MTU with a 7.5 twist, just pick your chamber. You can Click This Link to purchase.
All this barrel has left is for you to pick the chamber you want for a 6mm bore and we can ship it out. It's threaded for a Coup de Grace action 26" Heavy Plama contour with a 7.5 twist. You can Click This Link to purchase.