some people are unaware that there are different types of plastics just like different types of metals and just as potmetal would be unsuitable for a barrel certain types of plastics would be unsuitable for gun parts, skidoo skis, sleighs etc. subject to extreme cold. i would not be surprised if colt came out with a metal bolt shroud but my tikkas plastic fares better in extreme cold than armchair naysayers do im pretty sure
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