I posted something similar in the welcome section, but thought I would ask the general forum too. I have shot my Glock 23 with a 9mm conversion barrel in very cold weather (Alaska -20 or below) and had some FTE issues. I have never had these issues in warmer weather and wondering if anyone else has experienced the same issue. FWIW, it did not seem to matter if the gun was "warmed up" either by shooting or by having been keeped on my person in room temperature conditions prior to shooting. Yes, I was using the 40s&w recoil spring, but that never caused any issues in warmer weather. It seemed as if the recoil spring did not like the cold weather. Any thoughts?