Modern firearms are amazing feats of engineering, specifically built to function in extreme conditions at extreme temperatures. The 1911 is no exception. In fact, the 1911 has a reputation of being one of the more reliable firearms on the market, there’s a reason why it’s popular after over a hundred years of service.
Here’s an awesome video of a 1911 being fired in ultra slow motion after being cooled to a temperature of -65°F, or about -54°C.
More info about the 1911 test. The full details of the test are quite cool. (see what I did there?) If you want to know the full implications of cooling a firearm to extreme sub-zero temperatures, it’s worth a look. The type of lubricant you can use on your firearms can make a difference in these extreme conditions.
If you’re interested in a summery of the effects of extreme cold on a firearm, here you go:
It would be wise to consider that your gun might not shoot at all or will function erratically at extreme cold conditions and to plan immediate actions to correct the problem. All failures to feed involved failures of the slide to go fully forward into battery, caused by a lack of slide velocity. Extreme weather and environmental fouling of a firearm generally cause a change to the function and safety of a firearm. Some parts are free to move while others do not properly engage or work at all. In all cases, it is essential that you think for yourself and test your equipment before you depend on it with your life.
The test was conducted with a Remington R1 1911 using Sig 200gr V-Crown JHP .45ACP ammo. It was cooled to -65°F, or about -54°C for two hours before conducting the test.