Dicks had a meltdown, for good reason.

[BrianSoddingBoru4]

They pledged to destroy the firearm in accordance to federal guidelines which means all they need to is cut or smash the lower receiver.

rollingstone.com/politics/politics-features/how-to-destroy-an-ar-15-629272/

According to the article, 'cut or smash' isn't good enough.  This section of the weapon must cut into 4 pieces with a cutting torch.  I'm not by any means a firearms expert, but it seems that subjecting the item to that much repeated heat would pretty well ruin it (at least as far as repair or rebuilding goes).

Could be wrong, though.

Boru