I have had a nagging thought that I finally managed to pen into a form of a question.
What temperatures do plastic composite weapons become volatile/dangerous to shoot when it comes to extreme cold (-20 +F)?
An example: My Hi-Point carbine is plastic (not sure of the exact plastic used) and I have seen a composite bow shatter and lacerate a friend in 10 deg. F (and he said he spent just shy of 1000 $ on the SoB). Aside from being more brittle (and a Hi Point PCC), what temperature should a gun not be exposed to?
What damage could be caused by cold weather use?