Digital Trigger Systems for the AR Platform

04/2024

The evolution of trigger systems has led to the integration of digital technologies, offering shooters unprecedented precision and customization. Digital Trigger Systems’ DigiTrigger represents a significant advancement, merging mechanical triggers’ reliability with digital control’s sophistication.

This hybrid system maintains traditional functionality in its “safe” and “fire” modes, operating mechanically without reliance on batteries. Yet, it introduces a digital mode, enabling a 1 lb trigger pull for rapid firing while preventing the shooter from outpacing the rifle’s bolt carrier group.

This innovative approach to trigger design enhances shooting speed and accuracy and retains mechanical reliability, a distinguishing feature of the DigiTrigger system.

Why Go Digital?

Digital triggers enhance the traditional shooting experience by integrating technology for improved speed and accuracy.  The ability to switch between modes—including a standard mechanical mode and advanced digital settings—allows shooters to swiftly adapt their rifles to various scenarios.

This customization extends to features like a binary mode, where a shot is fired on both pull and release, offering speed advantages.

DigiTrigger System Legality by State

This system falls under the category of binary triggers, which allow a firearm to discharge one round on the pull and another on the release of the trigger. It’s important to note that regulations regarding the legality of binary trigger systems vary significantly across states.

States Where Binary Triggers Are Banned or Illegal

  • California
  • Connecticut
  • Delaware
  • Florida
  • Hawaii
  • Iowa
  • Maryland
  • Massachusetts
  • New Jersey
  • New York
  • Rhode Island
  • Washington
  • Washington D.C.

These areas have specific legislation banning the use or possession of binary triggers, targeting devices that significantly increase a firearm’s rate of fire.

Legality in Other States

For states not mentioned above, binary triggers appear to be legal under current federal and state laws. However, compliance with all applicable laws and regulations is up to you, and these things change daily.

The ATF

“Machinegun” is defined under 26 U.S.C. § 5845(b) and 18 U.S.C. § 921(a)(23) as:

Any weapon which shoots, is designed to shoot, or can be readily restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger.

That “single function of the trigger” is the important part. The DigiTrigger system requires you to first pull the trigger and then manually release the trigger (two functions) to fire off two shots in binary mode.

 

The DigiTrigger is not an FRT that is banned by the ATF. Banned FRTs are differentiated by the ATF in this statement:

"Unlike traditional triggers and binary triggers (sometimes referred to generally as “FRTs”), the subject FRTs do not require shooters to pull and then subsequently release the trigger to fire a second shot. Instead, these FRTs utilize the firing cycle to eliminate the need for the shooter to release the trigger before a second shot is fired. By contrast, some after-market triggers have similar components but also incorporate a disconnector or similar feature to ensure that the trigger must be released before a second shot may be fired and may not be machineguns."

Sources

For more detailed information, refer to the following resources, as well as your state and local firearms regulations:

Digital Trigger Systems: Gen 2 DigiTrigger

At its core, the DigiTrigger is about giving you options—mechanical and digital—in a single setup without ditching the reliability of a traditional trigger system. What’s unique here is how it blends these two worlds. You’ve got the tactile, dependable mechanical mode that functions just like your mil-spec trigger, but with a twist of a selector; you’re in the digital mode with a 1lb pull and the option to fire on both trigger pull and release.

The Nuts and Bolts of the Gen 2.1 and 2.2

  • Trigger Group: They’ve moved to a flat-faced trigger, which isn’t just about looking modern; it’s about feel and performance. Plus, an ambidextrous selector comes standard, so whether you’re a lefty or a righty, they’ve got you covered.
  • Grip and Durability: The grip now mirrors the size of a standard AR grip but with an improved texture profile for better control and comfort. Inside, a metal chassis turns this grip into Fort Knox—robust and ready for whatever you throw at it. And the triple o-ring sealed battery magazine makes this bad boy completely submersible. Yeah, you heard that right.
  • Electronics: They’ve overhauled the electronics for efficiency and sealed them in epoxy, which is just another way of saying this system is tough as nails. Plus, the intuitive mode slider switches you from traditional to digital without missing a beat.

Beyond the bells and whistles, what sets DigiTrigger apart is its commitment to reliability and durability. The fire control components are top-shelf—8620HMN steel, precision machined, and finished to exceed mil-specs. It’s got an IP67 rating, meaning it’s as tough against dust and water as anything you’ve got in your arsenal. And those electronics are rated for at least 1 million firing cycles.

Whether you’re in it for recreation, professional use, or law enforcement, the DigiTrigger 2.1 and 2.2 systems offer a level of customization and performance that’s hard to beat. And the best part? They keep the essence of what makes the AR platform great while pushing the envelope of what’s possible.

Vs. Competitors

Comparing the DigiTrigger with other notable triggers like the Fostech Echo AR-II and the Franklin Armory Binary triggers highlights its unique benefits. While the Echo and Franklin Binary triggers are notable innovations in their own right, offering enhanced firing rates through mechanical means, they have their limitations.

Fostech Echo Arii Trigger For The Ar-15 Platform

The Echo requires a full auto bolt carrier in your firearm for the Echo AR-II to operate. The Franklin Armory Binary trigger, on the other hand, lacks a mechanism to prevent hammer follow, a condition where the hammer follows the bolt forward but doesn’t remain cocked for the next shot, necessitating manual intervention to reset the hammer.

Franklin Armory Bfsiii Ar-S1 Binary Trigger

The DigiTrigger employs software to dynamically regulate the firing rate, eliminating the need for proprietary components and minimizing the risk of hammer follow. This broadens the choice of bolt carriers and ensures a smoother, more reliable shooting experience.

Its hybrid design offers the best of both worlds: the reliability of mechanical operation and the advanced capabilities of digital technology. This means shooters can focus more on their target and less on equipment management. Its unique combination of reliability and advanced technology places it in a category of its own, setting new standards for what’s possible in digital trigger performance and versatility.

Installing a DigiTrigger

 

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