I have had a Burris Fast Fire II mounted on a Glock 19 for over three years and have never had a problem with it's function
Wow,,, that's great!!! I have to say after owning a couple of them,,, I'm a bit surprised. Pleasantly surprised,,, but surprised none the less.
Any idea how many rounds you have through her with the Burris installed? Is it an EDC gun, range gun, comp gun, nightstand gun etc.?