I've been looking around for new tools to stick in my toolbox. Someone had mentioned most airsoft guns are made of Zamak 3,4 or 5, which is a zinc alloy. If guns are made of a standard zinc alloy, they might be solderable, and I did some some digging. Super Alloy 1 keeps popping up and it is advertised as working on Zamak alloys, but it's $60 a pop! Do any of you guy's have experience with the stuff or have alternative soldering materials for pop metal repairs?