This has been legal for a very long time, and is the cause of approximately no violence. Much as with the discussion of 3d printed firearms, it's not so much that the behaviors of gun owners and gun builders has changed as it is that the prevailing discourse in the political arena and the news is different.
The author refrains from espousing an opinion in the piece, but only just, and frankly I disagree with him. The rifles created at build parties don't cause crime. Violence in general is falling, and "gun crime" with it. Occasional, prominent tragedies are emotionally shattering, but making policy based on emotion has served us poorly for decades.
The author refrains from espousing an opinion in the piece, but only just, and frankly I disagree with him. The rifles created at build parties don't cause crime. Violence in general is falling, and "gun crime" with it. Occasional, prominent tragedies are emotionally shattering, but making policy based on emotion has served us poorly for decades.
Relevant previous discussion: https://news.ycombinator.com/item?id=3019586