For the AR-15 enthusiast looking to enhance their shooting experience, a binary trigger offers a unique capability that bridges the gap between semi-automatic and more regulated fire control systems. By firing one round on the pull of the trigger and another upon its release, these triggers can significantly increase your rate of fire for training, competition, or recreational shooting. Understanding the nuances of each model is crucial for making an informed purchase.
The market offers a variety of binary triggers, each with its own set of features, compatibility, and design philosophies. From well-established industry leaders to innovative newcomers, selecting the right one depends on your specific rifle platform and intended use. This guide breaks down eight of the best options available, providing the detailed information you need to select the perfect binary trigger for your AR-15 or compatible firearm.
Our Top Picks for AR-15 Binary Triggers
- Echo C450000060 Trigger Genuine OEM Part
 - M&P 15-22 Magazine Loader Gen 2 Quickie Speed Loader
 - Franklin Armory BFSIII AR-C1 Binary Firing System
 - Franklin Armory BFSIII BFS3 Binary Trigger Pack
 - Fostech Echo Sport Binary Trigger System
 - WOT Binary Trigger for AR-15
 - Franklin Armory BFSIII 22-BFS Trigger for 10/22
 - Double Tap Tactical AR-15 Binary Trigger
 
Echo C450000060 Trigger Genuine OEM Part
    
As a genuine Original Equipment Manufacturer part, the Echo C450000060 offers a level of reliability and direct compatibility that is highly valued. This trigger is designed to meet strict specifications, ensuring it integrates seamlessly with the corresponding firearm platforms it was engineered for. For those seeking a factory-grade replacement or upgrade, this part provides peace of mind.
The manufacturer part number C450000060 guarantees you are receiving an authentic component. This is essential for maintaining the performance and safety standards of your firearm. It is a straightforward solution for builders and owners who prioritize OEM quality and a direct fit over aftermarket modifications.
M&P 15-22 Magazine Loader Gen 2 Quickie Speed Loader
    
While not a trigger, this accessory is a must-have for any M&P 15-22 owner who uses their rifle frequently. The Quickie Speed Loader is designed with an ergonomic design that makes loading .22LR magazines fast and effortless, saving your fingers from strain and fatigue during long range sessions. It is a simple tool that greatly improves the user experience.
This loader is made exclusively for S&W M&P 15-22 factory magazines that feature load assist buttons. Constructed in the USA from durable 3D printed polymer plastic, it is built to last. This accessory allows you to spend more time shooting and less time loading, making it a practical addition to your range bag.
Franklin Armory BFSIII AR-C1 Binary Firing System
The Franklin Armory BFSIII AR-C1 is a pioneer in the binary trigger category and remains a top contender. This system is renowned for its robust construction and reliable performance, offering a consistent binary function that can handle regular use. It provides a unique shooting dynamic that is both challenging and enjoyable for marksmen.
Installation is designed to be straightforward, often fitting into standard lower receivers without the need for permanent modification. The selector switch clearly indicates safe, semi-automatic, and binary firing modes, giving the shooter intuitive control. Its reputation for durability and precision engineering makes it a preferred choice for many firearms enthusiasts.
Franklin Armory BFSIII BFS3 Binary Trigger Pack
The Franklin Armory BFSIII BFS3 Binary Trigger Pack represents the core component of their renowned binary firing system. This pack is engineered for shooters who want to upgrade their existing trigger group with the famous binary action. It is built to exacting standards for a crisp pull and reset.
This trigger pack is known for its versatility and compatibility with a wide range of AR-15 platforms. The three-position safety selector allows for quick transitions between fire modes, facilitating flexible shooting drills. For those familiar with the Franklin Armory name, this pack delivers the performance and reliability the brand is known for.
Fostech Echo Sport Binary Trigger System
Fostech is another heavyweight in the binary trigger market, and the Echo Sport model offers a more accessible entry point without sacrificing the core binary function. This system is designed for a smooth and responsive shooting cycle, emphasizing user control and rapid follow-up shots. It is an excellent option for both new and experienced binary trigger users.
The Echo Sport typically features a simplified design that makes installation and operation more straightforward. It maintains the essential binary firing mode that Fostech triggers are known for, providing a high-performance experience. This trigger system is a testament to Fostech’s commitment to innovation in firearm triggers.
WOT Binary Trigger for AR-15
The WOT Binary Trigger presents a compelling option for AR-15 owners seeking binary functionality. It is engineered to provide a reliable and consistent binary action, enhancing the rifle’s rate of fire for various shooting applications. This trigger is built to meet the demands of active shooters.
Compatibility with standard AR-15 lower receivers is a key feature, aiming for a drop-in installation process. The WOT trigger focuses on delivering a practical binary experience with a clear mode selector. It stands as a solid choice for those looking to add binary capability to their platform.
Franklin Armory BFSIII 22-BFS Binary Trigger for 10/22
Franklin Armory extends its binary technology to the popular Ruger 10/22 platform with the BFSIII 22-BFS. This trigger brings the fast-paced action of binary fire to the .22LR world, making for an incredibly fun and affordable training tool. It allows for rapid shooting with minimal recoil and low ammunition cost.
Designed as a drop-in unit for the Ruger 10/22, installation is typically simple and does not require gunsmithing skills. The trigger maintains the same intuitive three-position selector as its centerfire counterparts. For rimfire enthusiasts, this trigger opens up a new dimension of shooting enjoyment.
Double Tap Tactical AR-15 Binary Trigger
The Double Tap Tactical AR-15 Binary Trigger is another player in the market, offering its take on the binary firing system. It is constructed to provide a durable and functional trigger option for AR-15 owners looking to experiment with a different firing mode. The design focuses on reliability during the pull and release firing sequence.
This trigger is made to be compatible with a broad spectrum of AR-15 rifles, promoting an easy installation. The Double Tap trigger aims to give shooters a responsive and controlled binary experience. It represents the growing variety of choices available to consumers in this specialized niche.
What to Look For in the Best AR-15 Binary Triggers
When I started looking for my first binary trigger, I quickly realized it’s not just about picking the shiniest one. You need to think about a few key things to make sure you get the right part for your rifle and your needs. The trigger’s job is to fire a round when you pull it and then fire another when you release it, so reliability is non-negotiable. A malfunctioning binary trigger isn’t just annoying; it can be a safety issue.
First, consider the installation process. Some units are drop-in cassettes that make the job incredibly simple, even if you’re not a master gunsmith. Others are more traditional component-style triggers that require more patience and know-how to install correctly. If you’re comfortable with detailed gun work, the latter might be fine. But if you want to get it done fast and get to the range, a drop-in system is the way to go.
Next, pay close attention to the feel. The pull weight and reset are crucial. A gritty, heavy pull in binary mode defeats the purpose. You want a smooth, predictable break so you can maintain control during rapid fire. I also look at the selector markings. A clear, unambiguous indicator showing safe, semi, and binary modes is a must-have feature to prevent accidental discharges.
Finally, think about durability and the manufacturer’s reputation. This isn’t a part where you want to cheap out. Look for companies with a proven track record, good customer service, and a solid warranty. Reading reviews from other users can give you a real-world idea of how a specific model holds up over thousands of rounds. By focusing on these factors—ease of installation, trigger feel, safety markings, and build quality—you can confidently narrow down your search for the best AR-15 binary triggers.
FAQ
Are binary triggers legal?
This is the most important question, and the answer is: it depends on where you live. Binary triggers are federally legal in the United States because they are not classified as machine guns by the ATF. However, several states have their own laws that explicitly ban them. You are responsible for knowing your local and state laws before you purchase or install one of the best AR-15 binary triggers on the market.
How does a binary trigger work?
A binary trigger changes the fire control group to create a two-stage process. When you pull the trigger, it fires one round just like a normal semi-automatic. The key difference is on the release. When you consciously release the trigger forward, it fires a second round. This “pull-release” cycle allows for a much faster rate of fire than standard semi-auto, but it is not full-auto because it still requires two distinct actions for two shots.
Are binary triggers safe?
When used correctly by a trained individual, binary triggers are safe. Their safety is heavily dependent on the user. They feature a standard three-position selector switch (Safe, Semi, Binary). The critical thing is to keep the selector on “Safe” until you are ready to fire and to be intensely aware of your trigger finger discipline. Because a shot is fired on the release, you must be certain of your target and what lies beyond it at all times.
Can I install a binary trigger myself?
In most cases, yes. Many of the popular models are designed as drop-in units, which significantly simplifies the installation process. If you are comfortable with basic AR-15 disassembly and have the right punch set and armorer’s wrench, you can probably do it yourself by following the manufacturer’s instructions carefully. If you have any doubt, it’s always best to have a qualified gunsmith do the installation.
Will a binary trigger damage my AR-15?
A properly installed and used binary trigger will not damage a well-maintained AR-15. However, the faster rate of fire can lead to increased heat and wear on components over a long period. It also uses more ammunition quickly, which increases your operating costs. I recommend ensuring your rifle is in good working order and that you use quality magazines to ensure reliable feeding during rapid fire.