A friend of mine who is not a gun guy (
how?
) and does not have an HQL was eyeing a local auction that included several "nonworking" handguns. He asked me if they still needed HQL. I'm pretty sure I steered him right in that he could buy them without HQL (functional or not) if they were more than 50 years old. Though I couldn't point to a statute, I'm confident that the government (fed and state) still considers them handguns even if they are broken or worn out. Would you have to grind the serial numbers off to make them "no longer firearms," right? 
But, it got me wondering if there are set standards for deactivating a handgun, making it no longer a handgun. I'm vaguely aware of ATF's de-milling for machine guns (torch the receiver into 3 pieces...or something similar, right?). Is there a less patina ruining way to make a handgun (modern, and in MD) into an unregulated wall hanger?
I can certainly think of ways that a welder could render a functional handgun into an inanimate paperweight...but what level of fusion does the law require?
I don't plan on doing anything of the sort...just curious now.



But, it got me wondering if there are set standards for deactivating a handgun, making it no longer a handgun. I'm vaguely aware of ATF's de-milling for machine guns (torch the receiver into 3 pieces...or something similar, right?). Is there a less patina ruining way to make a handgun (modern, and in MD) into an unregulated wall hanger?
I can certainly think of ways that a welder could render a functional handgun into an inanimate paperweight...but what level of fusion does the law require?
I don't plan on doing anything of the sort...just curious now.
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