I broke a couple of nozzles while testing my rifles in sub-zero temperatures. Those are the only two nozzles I've ever broken, and I blame the breaks on the hop-up buckings.
I figure the buckings stiffened up in the cold weather, causing more stress on the prong at the bottom of the nozzle. That prong rubs up against the bucking, and the bucking provides friction to keep the nozzle from retracting too soon. It stands to reason cold temperatures could cause a failure there. As I said, I've never had a failure in warm weather.
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* * * * * * * * * Rob Bye
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