MNyoteHunter
New member
Got problems with my new ar I built for coyote hunting. It won't fire in the cold. Cost me a pair of coyotes Monday night. It was 15 below zero and I tried to fire it 3 times and nothing just light primer strikes. Took it in the warm house over night and it fired just fine. Pulled the bcg out and cleaned everything real good and tried swapping the firing pin. Left it in the 3 below garage overnight and it wouldn't fire again this morning. I've put another ar in the garage before work and I'll see if that one fires tonight and try swapping bcgs to see if that's the problem. What else could be causing it to not fire only in the cold? Aero precision upper, larue predatar barrel, bcm fde bcg and ke arms drop in trigger shooting hornady 75 grain hollow points.