I have the AR2078 mostly apart - but I can't get "0200" plug out of the tube - it seems to be catching on a threaded hole with burr in the tube, or something. I read a tuning guide that says these may be tight and to work it out with a punch through the slots. So just to be sure, this "plug" comes out the rear end of the tube? and the valve, unscrews and comes out the front end of the tube? and how much beating on this plug is allowed? OR..... can I slip it out the front of the tube more easily with the valve out?

Transfer port seal was kinda rough, and lots of "slivers" found throughout - glad I'm doing this. Thanks!