I just purchased the 18 in SS Keymod complete upper. While waiting for the blemish lower I was able to seat the bolt and pull charging handle no issues. Today the lower showed up put them together no issues. I then took it out to test fire. Loaded the PMAG inserted and mag would not lock into place, pulled bolt back mag seated. I let the bolt go forward and it did not seat fully, pulled handle and would not release. So bolt won't go fully closed, have a live round in the chamber. I was able to get the lower off and looked from the bottom. The bolt teeth are not lined up with the barrel so when you pull back on the charging handle they catch on the barrel.
Any ideas on how to fix this?
Edit: guess I can take the rail, and barrel off to get the round out and then figure out why it happened.
2nd edit...had some sleep, pulling rail and barrel will not work, the lugs on the bolt are "caught" in the lugs on the barrel...going out of town for the weekend, be back late Sunday I will attempt to get photo's of the issue and update if I have any success.