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Liberty Gun Works: Bi-Directional Triggers

liberator Bi directional trigger

Any firearm that fires more than one bullet when you pull the trigger is considered a “Machine Gun” under US law.  It doesn’t matter if it fires in bursts, if its full auto, or even if it fires out of multiple barrels.  People are always looking for different ways to get around this restriction and increase your rate of fire, without actually turning into a “Machine Gun” and having its sale restricted.  One of the more popular items are bump fire stocks.  A new contender is the bi-directional trigger by Liberty Gun Works.  

With their bi-directional trigger, you fire once when you pull the trigger, and once again when you release.  Since it only fires once when you pull the trigger, and there is no mention in any laws about firing when you release the trigger, it’s able to be sold without any of the hassle you find with machine gun sales.

That said, it’s an incredibly stupid, unsafe, and irresponsible firing mechanism.  With this, you don’t have the option of only firing one bullet.  You pull the trigger once, and you better have some where safe to fire that second bullet, because the second your finger slips off the trigger, you’re firing again.  The only way to stop the second shot would be to try to unload the weapon, which again, would require keeping one finger firmly depressing the trigger.

Fire once and then see someone down range, you’re stuck holding that trigger until the range clears.

There is no option to turn this feature off.  It only has the one firing option.  When you pull the trigger, it takes away your ability to decide NOT to fire a second shot.

If, for some reason, you want to pay three times as much for a rifle that has been modified in an unsafe way, you can swing over to their website and order one.

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  • Cymond

    “With this, you don’t have the option of only firing one bullet. You pull the trigger once, and you better have some where safe to fire that second bullet, because the second your finger slips off the trigger, you’re firing again. The only way to stop the second shot would be to try to unload the weapon, which again, would require keeping one finger firmly depressing the trigger.”

    I agree that it sucks that this is the gun’s only firing mode, but I think you’re misunderstanding it’s intended use. It’s not meant to slowly fire single rounds, it’s meant to fire double-taps. The second shot should be a quarter second after the first one. It doesn’t matter whether you’re using a traditional single-shot trigger or this bi-directional trigger, a double-tap is still a double-tap.

    For that matter, would you condemn a registered full-auto the same way you do the bi-directional trigger? Most machineguns have a ROF fast enough that it’s not possible to shoot single shots, do you have an issue with those as well?

    • No, I don’t have a problem with machine guns. Machine guns are also used for different purposes than AR15s. I generally wouldn’t recommend that some use an M60 for home defense, but an AR15 could be great for that purpose. Likewise, I probably wouldn’t mount an AR15 on my car for antiaircraft purposes. I feel that I should also point out that a machine gun stops firing when you release the trigger

      The problem here is that if you pull the trigger, and don’t instantly release, what do you do? What if it’s an accidental trigger pull?

      This may be fine for at the range, where you can always just fire a round downrange again (unless it was an accidental firing, and there are people downrange preventing you from doing so safely.)

      What if you are in your home? Do you fire the next round into the wall and hope that it doesn’t penetrate and hit someone else?

      • Cymond

        Ok, admittedly, an negligent discharge would be really bad. Assuming that the owner didn’t release the trigger accidentally after the first shot, he’d be stuck trying to drop the magazine and open the bolt while holding the trigger down.

        But my point was your statement that “you don’t have the option of only firing one bullet” is also true of an Uzi, MAC-10, or M-16, all of which are safely owned and used. With a ROF of 1,200 RPM, you can bet that a ND with a MAC-10 is probably going to dump half the magazine, or at least several rounds. Also, your post sounded like someone would consciously attempt to fire single rounds, and then get stuck holding the trigger. I was trying to point out that is not how it’s intended to be used. If consistently used only for double-taps, then I don’t see the Bi-Directional trigger as much more dangerous than an M-16 with 3-round-burst or full-auto. OTOH, most full-autos do have a semi-auto mode, which the Bi-Directional trigger does not appear to have.

        I sincerely hope that some company eventually develops a selectable version of the bi-directional trigger, so that it is capable of both traditional single fire and bi-directional double taps.