Notable appearances: Batman #405 and 406
Contrary to popular belief, Batman isn’t dependent on advanced technology to survive. In Frank Miller’s Batman: Year One, the Dark Knight employed one of the most basic, yet effective, weapons in his arsenal: the tranquilizer. It first appeared when Batman used a mechanical needle gun to tranquilize the mob’s limo drivers at the Falcone compound. It was quick and painless, but it got the job done.
Later on, while being forced to combat the Gotham City S.W.A.T. team from the shadows, he shot a simple blow dart that was loaded with a tranq at one of Gotham’s finest. Without making a sound, Batman dropped him like a bad cell phone plan. See, you don’t need fancy tech emblazoned with a bat logo in order to fight crime.