A "wrist pin"?
(holds the connecting rod to the piston)
Most of us just had a 4 inch length of 3/4 inch diameter black pipe. It was to protect the bones in the hand mainly, when engaging in physical shenanigans with the kids from across the tracks.
More seriously, I’m really angry with the left, but I think we need to step back a notch. Make sure that if we get physical, it’s justified in the court of law. For now anyway.
If war breaks out, that won’t matter any more. But as long at Trump stands with us, war won’t break out.
That's IT! Fill with lead and good to go.
Pro tip: Try not to drop it in the middle of a brawl with the boys from Oxnard, if you can help it.