Thanks for the replies. Good to hear that the M1S barrels are doing well. I do think that I'll probably lean towards Teppo or Noveske because I think the pistol gas port sounds like a more reliable way of handling both sub and supersonic rounds. Besides it would take less time to order one of the others since I can get them already threaded for the YHM Phantom for the supresor. I may call M1S though and discuss this with them to be fair. Ah so many things to build, so little money left.
