Awesome Idea (I think)

put the lid back on the bottle and return it to the shelf...............

 

AK47 has something similar, It's called trigger slap

Seriously though, a spring returns the trigger to reset position as fast as the bolt can cycle (if you release tension on the trigger).

If you want similated full auto in an AR15 get a slidefire (bumpfire) stock

 

I don't see how you are planning to reroute gases to the trigger instead of to the carrier key, and even if you could pull it off you are taking away gas blowback that is necessary to regular function of the bolt cycling.

Ignoring that BATF would surely instantly outlaw it, and ignoring seemingly impossible design, I think it would result in a terribly uncomfortable trigger slap.

 

what ^ he said lol

 

mike lol!!!

 

Check out the Tac Trigger. Same idea, rapidly resetting the trigger, but using a different operations concept.

[ame]http://www.youtube.com/watch?v=B3ULUNaOTJY[/ame]

 

cool deal happysniper

 

I'm kinda intrigued by this thread, I agree with Bhale in that the gasses of an AR are needed to cycle the weapon and therefore really can't be rerouted... Now I think if you use a hydraulic buffer and maybe plum a secondary intermittent gas system from the stock section to the trigger assembly using CO2 then maybe it could work... Would require some reworking the stock and lower receiver which would involve a little CNC tooling and that is over my head a bit... also I'm not 100% familiar on the legality and if the BATF would approve it for civilian use outside of their NFA rulings, the alphabet police are quite strict regarding things like this... These are just some ideas I have been thinking about regarding this topic, again I'm not sure if it would work... Please if someone has other ideas or changes please add on

 

Isn't the Tac trigger, the GAT, the hellfire, hellstorm, et al considered an NFA and illegal by the BATF?

 

I know that the Tac-Trigger is legal. I do not know about the others.

Sold at all the gunshows here in Reno. All the time.

Since it only converts the weapon to a rapid-fire semiauto, only one round per trigger pull, it does not meet the NFA definition of a full automatic.

At least as far as I know.

It takes some getting used to, you move the trigger finger, you do not squeeze the trigger, so the finger is somewhat limp....BUT, it won't stop firing until it runs outta ammo or you pull your finger outta the trigger guard.

I have fired my AR with this gizmo on it, in front of deputies from the SO, and all they said was "and that's NOT an automatic?". No issues at all, in my experience. But then again, this is Nevada

 

This. They'd most likely re-write the definition of "machine gun" to include something about firearms with mechanisms that use the energy of the cartridge firing to reset the trigger, and suddenly a belt-loop would render an AR15 illegal as it can be used to bump-fire the gun.

I think that's exactly what they're trying to design. The trigger slap would have to be pretty wicked if this design were to increase firing rates over that of typical semi-automatic fire. Bruised and possibly broken fingers would be typical.

 

I was commenting on the nasty trigger slap, not the rate of fire. I have no doubt that it can be set up to fire faster. Even in the video you posted, it didn't look pleasant; shifting it to a firearm, where the impulse is stronger and over a shorter duration, I think it would have to be even harsher.

I think it's interesting from a legal standpoint in that it follows the letter of the law while completely violating its spirit, but that's about it. It's a simple enough engineering problem.