In this video I am replacing the regular AR15 trigger pins with Anti-Walk trigger pins on my 6.5 Grendel rifle. For some reason the trigger pin, not the hammer pin, was walking out on me as I was shooting and caused some rounds not to fire. After this fix, I have not had that problem and every round is firing just fine, even with my custom trigger job. The link to the Brownells Anti-Walk trigger pins is here
To read a little more about first time I discovered this problem read this blog post here.