243 CIA unveiled the "Heart Attack Gun" (1975). A battery operated gun that shot a dart of frozen water and shellfish toxin. The dart would only leave a tiny red dot and an autopsy would conclude death from heart attack. (twitter.com) posted 1 year ago by goldentomatoes1 1 year ago by goldentomatoes1 +243 / -0 41 comments share 41 comments share save hide report block hide replies
Mythbusters tried making a bullet, and shot them out of guns with powder, which would not work because the ice bullets exploded.
A dart delivering poison wouldn't be going nearly as fast and only needs to penetrate the skin.