Takes way, way less time and energy to learn how to use a mill than to try and print a single-shot ABS weapon on most hobby-grade 3D printers. Not to mention,

Takes way, way less time and energy to learn how to use a mill than to try and print a single-shot ABS weapon on most hobby-grade 3D printers. Not to mention, the results you'd see from a mill are much safer, reliable, effective, etc.