A simple Arca-Swiss compatible tripod plate for keymod handguards. Last weekend a few of us were at the range and I was shooting off a friend's tripod when I thought that this would be a nice thing to have, that way I wouldn't have to worry about the rifle moving about on the shooting sticks. I've jerked it around and really beat it up since printing and it looks like it'll hold up well.
I printed with a high infill because it needs to be strong to hold up. This might be a good candidate for 100% solid printed.