So I now have the "Pull-Release" double tap action on my 16" AR. Everything looks OK to me but cleaned up she still has this "feature".
Decided I didn't want to spend the time dealing with it and left it with the gunsmith at my range for repair. Told him to make it stop or make it work better.

It's a misc lower parts kit in a DPMS lower. Worked fine until a few days ago. In my opinion it's actually evolving towards workng better but the BATF might have an issue with letting it evolve further.

Worn dissconnecter spring.  Causes the diss. to bounce when the hammer falls on it.

Pretty common.


But IIRC there was a pull and release trigger for the Mini14 many years ago that made its way to the public.  BATF said it was okay....again, just trying to remember

Check the trigger pin to see if it is bent.
With a very slight bend, it can rotate into a position that does not allow the disconnector to catch properly.
Have seen this several times with DPMS lower parts. (called DPMS about this and they denied it was their parts)
Remove the pin and roll it on a flat surface.

Does it group well?  

Quoted: Worn dissconnecter spring.  Causes the diss. to bounce when the hammer falls on it. Pretty common. But IIRC there was a pull and release trigger for the Mini14 many years ago that made its way to the public.  BATF said it was okay....again, just trying to remember

Knew a guy who had one of those... Made for a mean mini.