New AR build fail to feed 223 but not 5.56???
I am going do a few more single round tests to check for that gas issue. Like I said, I have some usgi mags with green and tan followers on the way so we will see how those work. I think I am going to try and retighten stuff up to make sure.
One thing I did not do is grease the buffer spring. It came wet so I just threw it in there. Maybe that's with taking a look at. I got some xm193 5.56 to try out this weekend and will keep you guys posted. I'm hoping it his needs break in.