Amateur Batman Builds His Own Wrist Mounted Grappling GunBy: Andrew Liszewskion December 30, 2020 at 6:20 pm Publication: GizmodoTechnology Insights <source type="video/webm" src="https://i.kinja-img.com/gawker-media/image/upload/s–Tl5cqml6–/c_fit,fl_ Categories grappling hook, built irl, hacks, gadgets, batman ShareTweetPinShare
