Airsoft Rail Gun
 

Edit: Looks like they have applied it to shoot Airsoft BBs now :D

http://www.em-gun.com/em40b.htm

http://www.em-gun.com/pics/em40bs1.gif

Old Post:
Well sort of. But not that powerful!

http://www.em-gun.com/

Geez, that's crazy!

Mods, feel free to move this if I put it in the wrong place. Just figured it would get some more interest here instead of Off Topic or Upgrades and Modifications.

They are like the Junkers air rifles from Russia, they use 4.5mm metal pellets, I wouldnt want to get shot with that...

I posted it as an adaptation of that idea for airsoft use. Of course not as powerful, that would be crazy! I posted a design similar in concept to that on ASR, I didn't get much feedback from the Americans though. Maybe MadMax or Gooseman would be interested in building my design and collaborate. Not the above design, but from my sketches. But my design was to use a solenoid to push/pull a piston to propel the 6mm BB. I'll have to find it. I'll also post scans of my sketches as soon as I get a chance. Oh and my design was for a pistol, but can easily be adapted to an AEG. That would be perfect, it would have no moving parts except for the piston, no stripped gears and would have kick to boot!

Cheers,
Ray :D

You cant use a coilgun without a magnetic projectile, a plastic bb won't work. You'd have to use a metal bb, like they have now....

See, here's my idea. No metal bb's. Instead think of how a piston is used in a springer. Now instead of a compressed spring pushing the piston, a metal rod is "pulled" along by the magnetic forces generated by the coil surrounding the piston cup. Now I know this may take up a lot of energy, but the idea is there and with stronger batteries these days, well... Then compressing air within the piston and propelling the 6mm BB out the barrel. That is one direction of magnetic flow. Now reverse the polarity and the metal rod now moves in the opposite direction "pushing" the slide back creating a blow-back effect. Now cut the electrical flow. No movement. That allows the recoil spring to push the slide back into position and chambering the next round. Then once the last round is expelled, it would lock back like a normal GBB/real steel. Since this would need a strong battery, it could be located in the mag since the bb stack only takes up little room. The trigger acts as the on/off/reverse switch.
I know there are some engineers here that can help me out. Carl, what do you think of this? :)

I doubt you'll get enough distance within a pistol to produce enough acceleration. OR those batteries would only last a few shots.

They also seem to work with "diamagnetic" plastic BBs..... hmmmm

Made Man, that is true. I do not know enough about batteries or electronics, but the concept is there. May apply more to a rifle or SMG. But I think it could work. Diamagnetic bb's hmmmmm.... that might work too :)

not.... as such.

They use a two part projectile idea. The pellet sits in front of an actual magnetic component. The magnetic component moves and stops short of leaving the barrel, the non-magnetic (pellet) continues on it's path.

They've got a pretty slow recharge rate though.

1 shot per 5 seconds, and 1 shot per 7.5 seconds (the "flash" model and the "needle" model respectively)

The solenoid idea is different, but you wouldn't have the same recharge time between shots. The soleniod system is like your automatic locks in you car, they work on solenoids. You can click them up and down so fast, your kids do it. Now with the solenoid in the piston, you just need a higher voltage to speed up the movement. Man, I have this image of my door locks shooting through the roof! :)

I know this is a little off topic, but doesn't the EM44A1 "flash" look like the rifle from halo?

Halo and Half Life 2 apply to the second, the MP7 (by H&K).
The first is also in reality, it's made by FN (Who also brought us the P90), known as the FN2000. It's not the Halo 2 (or 1) rifle, though.

I'd be quite curious to see how they manage the power issue. The largest downfall of coil/rail guns supplying the current needed to power the unit...

hrmm

Something like this might work.
http://home.howstuffworks.com/nail-gun3.htm
The rod that pushes the nail would attach to the piston.

The only upgrade would be stronger batteries and better capacitors.

I like the fact his weapons are made of metals or high impact plastic.

We would have the same problem with airsoft anyway.

Penguin:

- It looked like there was a pretty fat battery sitting inside the gun (that red, soup can looking item)...

I'm guessing that's the majority of the "internals" right there.

Could be fun to have a rail-gun sniper rifle.

Fill the stock and the foregrip with capacitors, shield the barrel from interference, and have a totally silent rifle.

Fuuuuuun.