this is a gray area that I have also been quite curious about.
something about it does not seem to fit quite right however anyone is free to sell rifles from their own collection. on the other hand it would look very suspicious if you were ever audited by the ATF and out of the 75 guns you used your license to acquire only 22 were still in your collection that would be incredibly hard to justify allowing you to keep your license.
all guns lost in a tragic smelting accident.
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