Daniel Eindhoven spent $133 and countless hours building a semi-automatic coilgun that’s capable of firing 42g projectiles at speeds in excess of 100km/h — 14 shot capacity. Continue reading for one more picture.

It also sports a digital voltage display and a laser pointer. Just as we predicted when we saw the Nerf chain gun, the inter-office arms race is definitely on.

[via Engadget]