I received my new Gunfixer from CSS on 11-27-09. It hits the barrel and will not thread into the gas block. The factory plug was very hard to remove also, as i thought i'd break something while trying to remove it. I see video's of people just unscrewing the plug by hand, but mine is so close to the barrel, upon removal of the factory plug it made grooves in the barrel which look like thread marks. Filing down the original would be no problem, but the Gasfixer has much more contact area.
Anyone had this problem & what did you do to remedy it?
Forbyfor