I assembled an AR lower a few months ago (before the current rush). This is my first AR. First time out, everything worked beautifully. Second time out the trigger pin walked, rendering the trigger inoperable. I got it home, broke it down, and discovered that I had installed the hammer spring incorrectly. Stupid mistake on my part, but I suppose I learned a valuable lesson.
My issue is now I'm just nervous that pin will walk again even though the hammer spring is now seated correctly in the grove in the pin. There is a very slight looseness in the pin / receiver interface, but I just don't have enough experience to know if that is normal or out of tolerance.
So, my question to you guys, should I just get over it unless/until the pin walks again, or would it be worthwhile to get a set of anti-walk pins?
Opinions appreciated.