I'm sure it's been asked on here before but I can't find the thread.
Since 30 round magazines are so much cheaper than 10 round magazines, can I buy a 30 round mag, and a block in AZ and convert it before I bring it back so that it is a 10/30?
Since 30 round magazines are so much cheaper than 10 round magazines, can I buy a 30 round mag, and a block in AZ and convert it before I bring it back so that it is a 10/30?
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