Yes it can be done, here's a pic of an old boomy re-machined to the new thread, next to an original angel threaded boomy.
This means any of the original threaded angel barrels can be converted to the new angel thread.
No material has been added to the barrel, this is machined only from the original barrel.
No need to by a full set of barrels.
This means any of the original threaded angel barrels can be converted to the new angel thread.
No material has been added to the barrel, this is machined only from the original barrel.
No need to by a full set of barrels.