Flying Dragon is working on getting some....may have a wait though. They are made at the Xisico factory so should have good barrels. With some minor changes to the trigger it turns out really nice
you need to remove the safety, pull safety button out and remove, look at rear on the bottom of the action, you will see a hole by the trigger group, need to remove set screw, spring and ball, pull reset lever out, now remove pins, should come free...