Re: Man 3D prints face grenade, is saved by police
That's nothing; search for 80% lower. :)
3 publicly visible posts • joined 19 Feb 2019
Plastic 3D printed AR-15 lowers fail after a few rounds. I've NEVER seen a 3d printed upper, because the direct impingement gas system actually vents relatively high pressure gas into the upper receiver.
If he really did print the upper with anything but a $10,000+ metal printer, he made a face grenade, not a rifle. The lower failing is not as bad, as you can get a few rounds out of it before the buffer tube arm cracks and the whole things breaks in half.