This beutiful (and fully functional) Fallout 4 automatic laser rifle was made by Chris Wolfe of Combustible Props using a 3d printer, a few LEDs, a sound board, a custom regulartor, and an Arduino Metro Mini. You can check it out in action in the video below!

For those interested in building one, the 3D files are available on myminifactory.com

[Source: Mistercombustible on Youtube | Via NA]