This is cool.  I like how we’re at the point where it’s viable to print internal components, not just the frames:

Shooting it:

1:18 – The bolt by itself weighs about 79 grams (which includes the 45 gram tungsten weight).   The original 10/22 bolt weighs 180 grams.  He goes on to say later on that because of the light weight, this particular bolt design only works for subsonic rounds or short rounds.

Cool little project.  I’ll be watching this one to see if he’s successful in getting that bolt weight up.

The guy’s channel is called Heywood Yabuzzoff, and he has a lot of other experimental 3d printed gun vids too.  Definitely worth checking out.

Thoughts?