Misunderstanding, I should have said I don't care what BATFE thinks, I think it's cool.
If that took 15 hours to print, a stock would take a week!
I have the CNC version to carve one out of aluminum somewhere, I haven't seen one in a couple years, but it's was 'Cool' for about a minute.
We did the receivers out of forged aluminum billet, with optics rail built in, a 'Thing' about 7-8 years back for the rimfire bench guys.
Actually more trouble than it was worth, but it was something different...
closer to 24 hrs actually but depends on what you want. (I wanted 2 buffer tubes together because I'm a sasquatch)