What Is a Franklin Armory Binary Trigger?

A Franklin Armory Binary Trigger is a special type of firearm trigger that allows a gun to fire one round when the trigger is pulled and one round when the trigger is released. This creates a faster shooting experience compared to a standard trigger, while still requiring a separate action for each shot.

Unlike fully automatic firearms, a binary trigger does not fire continuously. Each bullet is fired only when the shooter performs a specific trigger action—either pulling or releasing the trigger.

How Does a Binary Trigger Work?

A binary trigger is a special type of firearm trigger that fires two separate shots during one full trigger cycle. Unlike a standard trigger, which fires only once when pulled, a binary trigger fires once when the trigger is pulled and once when the trigger is released.

This design changes how the trigger responds, while still requiring a physical action for each shot.

What Makes a Binary Trigger Different?

The main difference between a binary trigger and a standard trigger is how the shot is released.

A standard trigger fires one shot when you pull the trigger
A binary trigger fires:
- One shot on the pull
- One shot on the release

Each shot still requires a separate movement of the trigger.

How a Binary Trigger Works (Simple Explanation)

Here is a basic explanation of how a binary trigger functions:

Trigger Pull
When the trigger is pulled, the firearm fires one round.
Trigger Held Back
No additional shot is fired while the trigger is held back.
Trigger Release
When the trigger is released forward, the firearm fires a second round.

This pull-and-release cycle is what gives the binary trigger its name.

Is a Binary Trigger Fully Automatic?

No, a binary trigger is not fully automatic.

A fully automatic firearm fires continuously while the trigger is held down. A binary trigger requires a separate trigger action for each shot — one action on the pull and another on the release.

Because of this, binary triggers are usually classified as semi-automatic trigger systems, depending on local laws.

Binary Trigger Firing Modes

Most binary triggers include multiple firing modes, such as:

Safe mode – Prevents firing
Semi-automatic mode – Fires one shot per trigger pull
Binary mode – Fires on pull and release

These options give users flexibility and control.

Key Features of the Franklin Armory Binary Trigger

The Franklin Armory Binary Trigger is one of the most popular and advanced trigger upgrades available for firearms. It uses Franklin Armory’s patented Binary Firing System® (BFS™), which gives a unique shooting experience while staying within the definition of a semi-automatic trigger. Below are the key features that make this trigger stand out.

1. Patented Binary Firing System® (BFS™)

The most important feature of the Franklin Armory Binary Trigger is its patented Binary Firing System®. When set to Binary mode, the trigger fires one round on the pull and one round on the release. This design gives faster follow-up shots and improved firing rhythm compared to standard triggers.

2. Three-Position Selector

The Binary trigger includes a three-position selector that allows users to choose different firing modes:

Safe – No firing
Semi-automatic – One shot per trigger pull
Binary mode – One shot on pull and one on release

This selector adds flexibility and control for different shooting needs.

3. Smooth Trigger Pull

Franklin Armory designs the Binary triggers to have a smooth and consistent trigger pull, usually around 4.5 lbs (±0.5 lbs). This helps shooters maintain control and accuracy, whether firing in semi or Binary mode.

4. Release Round Cancelation

A standout safety and control feature is the ability to cancel the release round. If you don’t want to fire on the release, you can switch out of Binary mode before letting the trigger forward. This adds an extra level of user control and safety.

5. Easy Installation

Most Franklin Armory Binary triggers are designed for straightforward installation into compatible firearms without complex modifications. This makes them a good upgrade option for many users.

6. Positive Reset and Reliability

The Binary trigger system includes a positive reset during the release phase, which helps ensure consistent performance and reliable operation shot after shot. This makes shooting feel more predictable and controlled.

7. Compatible with Many Platforms

Different Franklin Armory Binary triggers work with a wide range of firearms, calibers, and platforms. For example, the Binary® AR-ELITE model works in most AR platforms including calibers like 5.56 NATO, .308 Win, 300 BLK, 9mm, and more.

8. Interchangeable Trigger Bow (AR-ELITE)

Some models, like the Binary® AR-ELITE, include interchangeable trigger bows. You can choose between a curved trigger or a flat straight trigger depending on your shooting preference.

9. Enhanced Springs for Better Feel

Certain Binary triggers come with enhanced buffer, trigger, and hammer springs. These help fine-tune trigger feel and improve flexibility across different shooting platforms.

10. Designed for Competition and Tactical Use

All Franklin Armory Binary triggers are built to be useful for a wide range of shooters—from competition and tactical use to recreational shooting. They help reduce split times between shots and can lead to tighter groupings.

Benefits of Using a Franklin Armory Binary Trigger

The Franklin Armory Binary Trigger is a popular upgrade for firearm owners who want better performance, smoother operation, and more control than a standard trigger. Its unique design offers several practical benefits that improve the overall shooting experience. Below are the key benefits explained in simple terms.

Faster Shooting Response

One of the biggest benefits of using a Franklin Armory Binary Trigger is faster response. In Binary mode, the trigger fires one shot when pulled and one shot when released. This allows for quicker follow-up shots compared to a standard trigger.

Faster response can make shooting feel smoother and more controlled.

Improved Trigger Control

The Franklin Armory Binary Trigger is designed to provide a smooth and consistent trigger pull. This improved feel helps users maintain better control over each shot.

Better trigger control can lead to:

More consistent shooting
Reduced trigger fatigue
A more comfortable shooting experience

Multiple Firing Mode Options

Another important benefit is the three-position selector, which gives users flexibility. The selector typically includes:

Safe mode
Semi-automatic mode
Binary mode

This allows users to choose how the trigger behaves based on their preference or situation.

Still Requires Trigger Movement

A key benefit of the Franklin Armory Binary Trigger is that each shot still requires a physical trigger action. One shot happens on the pull, and one on the release.

Because of this design, the trigger does not fire continuously like a fully automatic system.

Mechanical Reliability

Franklin Armory Binary Triggers use a mechanical system, not electronics. Mechanical triggers are known for their reliability and consistency over time.

This benefit means:

Fewer electronic components to fail
Consistent performance
Long-term dependability

Built-In Safety and Control Features

Safety is an important benefit of using a Franklin Armory Binary Trigger. Many models include features that allow users to cancel the release shot by switching out of Binary mode before releasing the trigger.

This added control helps users operate the trigger more safely and confidently.

Durable and High-Quality Construction

The Franklin Armory Binary Trigger is built with strong, high-quality materials designed to handle repeated use. This durability ensures the trigger maintains its performance over time.

A durable trigger protects your investment and reduces the need for replacement.

Customizable Feel on Some Models

Some Franklin Armory Binary Trigger models offer interchangeable trigger bows, such as curved or flat options. This allows users to choose a trigger style that feels most comfortable to them.

Customization improves comfort and user satisfaction.

Works on Multiple Platforms

Franklin Armory offers Binary Triggers for different firearm platforms and calibers. This wide compatibility is a major benefit for users looking to upgrade different setups.

Always check compatibility before purchasing.

Why Buy a Franklin Armory Binary Trigger?

The Franklin Armory Binary Trigger is a popular upgrade for people who want better trigger performance, faster response, and more control than a standard factory trigger. It is known for its innovative design, reliable construction, and flexible firing options. Below are the main reasons why many users choose to buy a Franklin Armory Binary Trigger.

Unique Binary Firing System

One of the biggest reasons to buy a Franklin Armory Binary Trigger is its patented Binary Firing System. In Binary mode, the trigger fires one shot when pulled and one shot when released.

This design offers a faster and smoother shooting rhythm compared to a standard trigger, while still requiring a physical trigger action for each shot.

Faster and More Responsive Shooting

The Binary Trigger allows for quicker follow-up shots without changing the firearm into a fully automatic system. This faster response is a major reason people choose this trigger over factory options.

A more responsive trigger can improve timing and overall shooting experience.

Multiple Firing Modes for Flexibility

The three-position selector is another strong reason to buy a Franklin Armory Binary Trigger. It allows users to switch easily between:

Safe mode
Semi-automatic mode
Binary mode

This flexibility lets users choose how the trigger behaves based on their needs and preferences.

Smooth and Consistent Trigger Feel

Compared to many factory triggers, the Franklin Armory Binary Trigger offers a smoother and more consistent trigger pull. This improves comfort, control, and confidence during use.

A better trigger feel is one of the most noticeable upgrades.

Reliable Mechanical Design

The Franklin Armory Binary Trigger uses a mechanical system, not electronics. Mechanical triggers are valued for their reliability and consistency over time.

This design reduces the risk of electronic failure and supports long-term performance.

Built-In Safety and Control Features

Safety is an important reason many people choose this trigger. Franklin Armory Binary Triggers include features that allow users to control or cancel the release shot by switching out of Binary mode before releasing the trigger.

These safety-focused features add peace of mind and user confidence.

Durable, High-Quality Construction

The Franklin Armory Binary Trigger is built with strong, high-quality materials designed to handle repeated use. This durability helps ensure the trigger maintains smooth operation over time.

A well-built trigger protects your investment.

Customizable Options on Select Models

Some Franklin Armory Binary Trigger models offer interchangeable trigger bows, such as curved or flat styles. This allows users to choose the trigger feel that best suits their preference.

Customization improves comfort and overall satisfaction.

Trusted Brand Reputation

Franklin Armory is a well-known and respected brand in the firearms industry. Buying a Franklin Armory Binary Trigger means choosing a product backed by experience, innovation, and quality manufacturing.

Is the Franklin Armory Binary Trigger Legal?

One of the most common questions people ask is: “Is the Franklin Armory Binary Trigger legal?” The answer depends on both federal law and your local state laws. Below is a clear explanation to help you understand how legality works for this trigger system.

Federal Law — Generally Legal

At the federal level in the United States, the Franklin Armory Binary Trigger is generally considered legal. This is because it does not meet the legal definition of a machine gun under federal law.

Here’s why:

A machine gun is defined as a firearm that fires more than one round per single function of the trigger without releasing it.
A binary trigger fires one round when the trigger is pulled and another when it is released, but these are two separate actions.
Because the trigger must be pulled and then released to fire each round, it does not count as a machine gun under federal law.

Federal rulings and ATF interpretations (including expert commentary) confirm that binary triggers, like the Franklin Armory system, fall within semi-automatic trigger rules rather than machine gun rules.

State and Local Laws Can Be Different

Even though the Franklin Armory Binary Trigger is generally legal under federal law, state and local laws may differ. Many U.S. states have passed their own rules that restrict or ban binary triggers regardless of federal classification.

In some states:

Binary triggers are banned entirely
They may be treated like prohibited rapid-fire devices
Possession, sale, or installation can be illegal

This means that:

A trigger that is legal federally might be illegal where you live
Some states explicitly restrict or prohibit binary triggers
Always check your local and state firearm laws before buying or installing one

Examples of State Restrictions

Although not exhaustive, some states and local areas are known to restrict or prohibit binary triggers:

California
Connecticut
Hawaii
Maryland
Massachusetts
New Jersey
New York
Rhode Island
Washington

In these states, binary triggers may be treated as illegal or restricted devices, and sellers often do not ship them into banned states.

This list can change, so you should verify current laws where you live.

Responsibility of the Buyer

It is your responsibility to know and follow all applicable laws before buying, owning, or installing a Franklin Armory Binary Trigger. Federal legality does not override state or local restrictions.

Before purchasing, you should:

Review your state and local firearm laws
Consult with a qualified attorney or firearms legal expert
Check with your local authorized dealer for local restrictions

Being informed helps ensure you stay within the law and avoid potential legal issues.

Franklin Armory Binary Trigger Maintenance

Proper Franklin Armory Binary Trigger maintenance is important to keep your trigger working smoothly, safely, and reliably over time. Like any firearm component, regular care helps extend its lifespan and maintain consistent performance. Below is a simple guide explaining why maintenance matters and how to care for your Binary Trigger.

Why Maintenance Is Important

Regular maintenance of your Franklin Armory Binary Trigger helps:

Keep the trigger operating smoothly
Prevent dirt and debris buildup
Maintain consistent trigger response
Reduce wear on internal components
Support safe and reliable use

A well-maintained trigger performs better and lasts longer.

Keep the Trigger Clean

One of the most important parts of Binary Trigger maintenance is keeping it clean. Dust, carbon residue, and debris can affect trigger movement over time.

Basic cleaning habits include:

Removing visible dirt or residue
Keeping the trigger area free from buildup
Avoiding excessive dirt exposure

Clean components help ensure smooth pull and release action.

Light and Proper Lubrication

Proper lubrication helps reduce friction between moving parts. For Franklin Armory Binary Triggers, light lubrication is usually recommended.

Key points to remember:

Use firearm-approved lubricants
Apply sparingly, not excessively
Avoid over-lubrication, which can attract dirt

Correct lubrication helps maintain smooth trigger operation.

Inspect the Trigger Regularly

Regular inspection is an important part of Binary Trigger maintenance. Periodically check the trigger to make sure everything looks and feels normal.

When inspecting, look for:

Smooth trigger movement
No unusual resistance
No visible damage or excessive wear

If something feels off, it’s best to address it early.

Pay Attention to the Selector Function

The three-position selector (Safe, Semi, Binary) should move smoothly and click positively into place. Smooth selector movement is a sign of proper maintenance.

If the selector feels stiff or inconsistent, cleaning and inspection may be needed.

Follow Manufacturer Guidelines

Always follow Franklin Armory’s official maintenance recommendations. The manufacturer knows the product best and provides guidance designed to protect both performance and safety.

Avoid modifications or maintenance practices not recommended by the manufacturer.

Store Your Firearm Properly

Good storage habits also play a role in Franklin Armory Binary Trigger maintenance.

Proper storage helps:

Prevent rust or corrosion
Reduce dust buildup
Protect internal trigger components

Store your firearm in a clean, dry environment whenever possible.

When to Seek Professional Help

If you notice unusual behavior, inconsistent trigger function, or excessive wear, it’s best to consult a qualified gunsmith or authorized service provider.

Professional inspection can help ensure the trigger remains safe and reliable.

Franklin Armory Binary Trigger – Frequently Asked Questions (FAQ)

This Franklin Armory Binary Trigger FAQ section answers the most common questions people ask before buying or using a binary trigger. Clear answers help users understand the product better and improve SEO by targeting popular search queries.

What Is a Franklin Armory Binary Trigger?

A Franklin Armory Binary Trigger is an aftermarket trigger that fires one round when the trigger is pulled and one round when the trigger is released when set to Binary mode. It is a mechanical trigger system, not electronic.

How Does the Franklin Armory Binary Trigger Work?

The trigger works by firing:

One shot on the trigger pull
One shot on the trigger release

Each shot requires a separate trigger movement. In semi-automatic mode, it works like a standard trigger.

Is the Franklin Armory Binary Trigger Legal?

The Franklin Armory Binary Trigger is generally legal under U.S. federal law, but legality depends on state and local laws. Some states restrict or ban binary triggers.

Always check your local firearm laws before purchasing or installing one.

Is a Binary Trigger the Same as a Fully Automatic Trigger?

No. A binary trigger is not fully automatic. A fully automatic firearm continues firing while the trigger is held down. A binary trigger requires a pull and a release for each shot.

What Firing Modes Does the Franklin Armory Binary Trigger Have?

Most Franklin Armory Binary Triggers have a three-position selector:

Safe
Semi-automatic
Binary mode

This allows flexibility based on user preference.

Can You Cancel the Release Shot?

Yes. One important safety feature is the ability to cancel the release shot. This is done by switching out of Binary mode before releasing the trigger.

Is the Franklin Armory Binary Trigger Easy to Use?

The trigger is designed to be user-friendly, but users should practice and understand how firing on release works. Once familiar, many users find it easy and comfortable to use.

What Are the Benefits of a Franklin Armory Binary Trigger?

Key benefits include:

Faster trigger response
Smooth and consistent trigger pull
Multiple firing modes
Mechanical reliability
Strong and durable construction

These benefits make it a popular upgrade over standard triggers.

Does the Franklin Armory Binary Trigger Fit All Firearms?

No. Compatibility depends on the firearm platform and trigger model. Always check Franklin Armory’s compatibility information before purchasing.

Is the Franklin Armory Binary Trigger Durable?

Yes. Franklin Armory Binary Triggers are made with high-quality materials designed for long-term use and consistent performance.

Does the Trigger Require Maintenance?

Yes. Regular maintenance such as cleaning, light lubrication, and inspection helps keep the trigger operating smoothly and safely.

Is the Franklin Armory Binary Trigger Worth Buying?

Many users believe the Franklin Armory Binary Trigger is worth buying because it offers improved performance, smoother operation, and more flexibility than standard factory triggers. Whether it is right for you depends on your needs and local laws.