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Binary trigger

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A binary trigger (or “pull and release” trigger) is a device that allows a semi-automatic firearm to fire at an increased rate. The binary trigger works by firing one shot upon pulling the trigger and then firing a subsequent shot upon release of the trigger.

Binary triggers are installed through modification of the fire-control group. The preinstalled trigger of a particular firearm is replaced by the binary trigger assembly. As in all semi-automatic firearms, only one round is fired within a single function of the trigger. This makes the "binary trigger" avoid classification as a machine gun within the definitions used by United States federal law, so as stated by various ATF private-letter rulings.[1][2]

However, as with all private-letter rulings, these determinations on the U.S. legality of binary triggers are limited to the specific facts about the devices being examined. Any such legal opinion may be modified or revoked at any subsequent time by the Bureau of Alcohol, Tobacco, Firearms and Explosives. [3]

Binary triggers became popular in the United States after the 2017 Las Vegas shooting. This was because of the fact that trigger-cranks and bump stocks had largely-disappeared from online sellers due to fear of legal repercussions; consequently, providing a niche for binary triggers to enter the firearms market.[4] Unsurprisingly, in wake of the shooting, these devices received scrutiny by progressive media outlets.[5]


See Also

References

  1. ^ Griffith, Earl (November 20, 2013). "ECHO APPROVAL LETTER". Violence Policy Center. ATF. Archived from the original (PDF) on May 31, 2023. Retrieved May 31, 2023.
  2. ^ "Ruger Two Shot Trigger". Photobucket. ATF. January 20, 2004. Archived from the original on May 31, 2023. Retrieved May 31, 2023.
  3. ^ "Rulings". ATF.gov. ATF. September 23, 2022. Archived from the original on May 31, 2023. Retrieved May 31, 2023.
  4. ^ Yablon, Alex (October 16, 2017). "These Six Barely Legal Gun Products Are Still Widely Available". The Trace (website).
  5. ^ Eaton, Joshua (June 18, 2018). "Gunmakers have the successor to the bump stock lined up". ThinkProgress. Archived from the original on May 31, 2023. Retrieved May 31, 2023.
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