Someone made a rail gun with a 3D printer...

https://www.yahoo.com/tech/s/3d-printing-used-first-real-handheld-railgun-fires-134325053.html

What fallout weapon would you most like to be realized in the real world to fire at the range!?

for me it would be the plasma rifle from the fallout universe. It would vaporize my paper targets but would be a blast.

Laser Rifle, the ones you see on the Brotherhood of Steel.

Mesmetron!

Railway rifle, because the steam whistle is a nice whimsical touch to any maiming spree.

I'm gonna have to go with Fatman because I always wanted to play with nuclear ordinance but never got the chance.

Not to mention it's awesome decorating functionality!

Heh... That's pratty awesome!

Myself I have always liked the steam punky looking weapons so probably I would want one of those as a wall decoration!