01-30-2020, 05:51 PM
montana Wrote:If the disconnect, "on a mil spec trigger does not properly fit" slam and double burst firing is inevitable. This was quite common on the older Olympic arms rifles. I filed the bottom of the disconnect leg to get proper purchase to fix the problem. Surprisingly, most AR owners know very little about this today, with the advent of better quality control in manufacturing.
I have an Ar in 204 ruger that I bought used online quite a few years ago. It has an older Giessele trigger that everything is adjustable installed. My first pull of the trigger ran a three round burst before I could get off the trigger. Turned out whoever had installed the trigger did not put a drop of locktite on the adjustments after setup and the disconnect adjustment vibrated out of adjustment enough that it was non functional.