Home » news around » Dude builds world’s first semi-automatic portable railgun, uses it to kill a laptop news around Dude builds world’s first semi-automatic portable railgun, uses it to kill a laptop 1 min2493:13 am https://bgr.com/2017/10/12/portable-railgun-diy-nsa-listbot-semi-automatic/ Share - -EmailShare on TumblrPrintPocketRedditTweetMoreTelegramWhatsAppLike this:Like Loading... Related Your ReactionLike0LOVE0Win0Cute0LOL0OMG0WTF0Fail0