So you love 3D printing things? You may want to give this 3D printed Nerf Gun a look. SYLPHRENA is a fully automatic blaster that holds 65 rounds and shoots Rival balls. It uses a brushless blower, flywheels, and a pusher wheel to feed the balls. An Arduino processor was used to complete this project.
Outof Darts has shared more info about this cool Nerf gun here. Pretty impressive if you ask us.