An idea popped into my head, well it's more of a question.
This probably wouldn't work but if someone had AR upper and lower receiver molds, would it be possible to cast your own upper and lower receivers by melting down aluminum and pouring it into said molds? would this work if the molds were the right dimensions? I don't think it would, considering that the aluminum most likely wouldn't be the "aircraft" grade aluminum used in actual receivers.
This probably wouldn't work but if someone had AR upper and lower receiver molds, would it be possible to cast your own upper and lower receivers by melting down aluminum and pouring it into said molds? would this work if the molds were the right dimensions? I don't think it would, considering that the aluminum most likely wouldn't be the "aircraft" grade aluminum used in actual receivers.
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