Inspired by the popular Portal video game franchise, Raxius Bloom, Martin Miller, Ben Pawlowski, and Giovanni Velez decided to create a model turret gun modeled after the ones featured in the game.

Sentry turrets have long been a feature of science fiction films and video games. These days, there’s nothing stopping you from building your own. [otjones99] has done just that, with his FPV Nerf ...