9 Best Binary Triggers (AR-15, AK-47, & More) By: Joseph Kocik

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Are you looking for the best binary triggers? Binary triggers are a lot of fun and allow you to shoot very fast legally. They can be switched from semi auto to binary and offer a huge advantage while not being a fully automatic weapon.

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They are easy to install and are more affordable than getting a tax stamp, filing paperwork, and waiting for approval to get a full auto rifle. They have become popular recently and can be added to a wide variety of different firearms.

If you do not yet own a binary trigger, then you are missing out and should have at least one in your inventory. Anti-gunners do not like them and would happily see them banned.

This article will cover the best binary triggers on the market for different firearms. 

Best Binary Triggers

Best Binary Triggers

Here is a list of the best binary triggers I recommend. There are easy to install and are direct drop-in replacement triggers.

These are for popular guns and platforms like the AR15, AK47, Ruger, CZ, H&K, and B&T.

1. Franklin Armory BFSIII AR-C1 Trigger

Best Binary Triggers

The Franklin Armory Binary Firing Trigger System III AR-C1 brings new trigger functionality to familiar AR platforms. This binary trigger will modify your AR rifle to fire on both the trigger pull and trigger release.

Franklin Armory BFS III Triggers are easy to install with no gunsmithing needed.

Competition shooters appreciate placing shots close to each other more quickly with Franklin Armory BFS III AR Trigger Systems.

Best Binary Triggers

This binary trigger is easy to install and requires no custom fitting. It is also a better trigger pull at 4.5 lbs than most factory mil-spec triggers. The release phase now has a positive reset, and the new design eliminates the backup disconnector.

A stronger buffer spring that is included reduces the possibility of hammer follow.

It works in most AR-style rifles without modification and works on .22 LR and 9mm uppers.

The trigger pin size is .154″, and it is not recommended for 80% lowers, polymer lowers, or carbon lowers.

Best Binary Triggers

The release round can be canceled by simply moving the selector out of binary mode while holding the trigger back.

This trigger system performs extremely well; even the trigger release feels good. It’s a heck of a lot of fun to shoot as well, but you will burn through ammunition very quickly with this one.

Best Binary Triggers

I have had many higher-end triggers before this one, and this one has one of the crispest breaks I’ve felt.

Mag dumps are a thrill, but I limit them because ammo is so expensive right now, but the double taps are amazingly accurate. Much better than a 3 round burst.

This trigger system can be purchased in either a traditional curve or in a straight flat faced trigger configuration.

Click Here to check the current prices of the Franklin Armory BFSIII AR-C1 Trigger

2. FosTech Outdoors Echo AR-II Trigger

Best Binary Triggers

The Echo AR II Trigger from FosTech Outdoors is an ATF-approved rifle trigger built specifically for AR-15 platform weapons. These binary rifle triggers feature an innovative drop-in design for easy installation and deliver crisp, light pulls while in semi auto mode.

Overall, the Fostech Echo Trigger has 3 different modes: safe (firearm will not fire), semi auto (gun fires when the trigger is pulled), and echo mode (weapon fires when the trigger is pulled and released).

Best Binary Triggers

These drop-in AR 15 triggers require a full-auto bolt carrier to function properly, and bolt carriers are not included with purchase.

With drop-in installation, cutting-edge technology, and clean trigger pulls, the Echo AR-II Trigger is an excellent addition to your AR platform. The patented design gained ATF approval.

Best Binary Triggers

The trigger pull is light, clean, and crisp. It feels really good in echo mode. It is also very reliable and dependable.

No proprietary carrier group is needed as long as it’s a full auto style bolt carrier group.

Click Here to check the current prices of the Echo AR II Trigger

3. Franklin Armory BFSIII AK-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII AK-C1 is a 3-position trigger designed for AK47 rifles and variants. In position three, it fires one round on pull and one round on release, making it the fastest semi-automatic trigger on the market.

This trigger is ideal for both tactical and competition use. The BFSIII? provides significantly reduced split times between rounds allowing for tighter groups.

The release round can be canceled by simply moving the selector out of binary mode while holding the trigger back.

Best Binary Triggers

The AK model you have will depend on how easy to install. There is a positive reset in the release phase.

This binary trigger is great for competition, tactical, and recreational enthusiasts.

Click Here to check the current prices of the Franklin Armory BFSIII AK-C1

4. Franklin Armory BFSIII 22-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII 22-C1 operates in various positions and is great for competition shooters, tactical shooters, and recreational enthusiasts alike.

This model is designed for Ruger 10/22 rifles, and it works great and is a lot of fun. Because 22LR ammo is inexpensive, a binary trigger makes perfect sense for the 10/22.

The BFSIII features a crisp trigger pull and has an audible reset on release.

Best Binary Triggers

The Binary Firing System from Franklin Armory is a 3-position curved trigger featuring user-friendly operating positions to switch from safe, semi-auto, and binary.

The BFSIII, operated in position 3 (binary), makes it the fastest semi-automatic trigger on the market, firing one round on pull and another on release.

The BFSIII trigger is ideal for any shooter as it is easily installed without a gunsmith.

Best Binary Triggers

Position 1 – Safe –Will not fire

Position 2 – Semi auto – Fires 1 round per pull

Position 3 – Binary – Fires 1 round on pull and 1 round on release

Click Here to check the current prices of the Franklin Armory BFSIII 22-C1

5. Franklin Armory BFSIII PC-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII PC-C1 is designed for the Ruger Charger and works extremely well.

These allow you to shoot very fast while maintaining accuracy.

Another excellent feature of the PC-C1 is the ability to release the next round in binary mode by simply switching back to position 2 in semi auto.

That will reset the trigger and keep the gun from firing on the release of the trigger. The PC-C1 is ingenious and wonderfully engineered.

The release round can be canceled by moving the selector out of binary mode while holding the trigger back.

Works in most 9mm and .40 Cal Ruger PC Carbine trigger housings. Great for competition shooters, tactical shooters, and recreational enthusiasts.

Best Binary Triggers

Position 1 – Safe –Will not fire

Position 2 – Semi – Fires 1 round per pull

Position 3 – Binary – Fires 1 round on pull and 1 round on release

Click Here to check the current prices of the Franklin Armory BFSIII PC-C1

6. Franklin Armory BFSIII CZ-S1 Trigger

Best Binary Triggers

Franklin Armory BFSIII CZ-S1 Binary Firing System, CZ Scorpion Straight Trigger. This Binary Firing System Gen 3 BFSIII straight trigger is designed for most CZ Scorpion variants chambered in 9mm.

Franklin Armory makes two different versions of this trigger for the CZ Scorpion. A straight trigger version and a curved trigger version.

  • C1 – Curved Trigger
  • S1 – Straight Trigger

The BFSIII is a 3-position trigger. In position 3, it fires one round on pull and one round on release, making it the fastest semi-automatic weapon trigger on the market.

This trigger is ideal for both tactical and competition use. The BFSIII provides greatly reduced split times between rounds, allowing for tighter groups.

This will let you unlock the full potential of your CZ Scorpion.

Features:

  • It will fit most CZ Scorpion firearms
  • Ambidextrous Safety Selector
  • Release round can be canceled by simply moving our Patented selector out of Binary mode while holding the trigger back
  • Great for competition Shooters, Tactical shooters, and recreational enthusiasts

Position 1 – Safe – Will Not Fire

Position 2 – Semi – Fires 1 round on pull

Position 3 – Binary – Fires 1 round on pull and 1 round on release

Click Here to check the current prices of the Franklin Armory BFSIII CZ-S1

7. Franklin Armory BFSIII CZ-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII CZ-C1 Trigger is the ultimate upgrade for both tactical and competitive applications.

This is the curved version of the trigger for the CZ Scorpion. The performance and operation are exactly the same as the straight trigger version.

This Franklin Armory BFSIII CZ-C1 Semi-Auto Trigger is a 3-position trigger: position 1 is safe and won’t fire, position 2 is semi auto and fires one round per pull, and position 3 is binary, firing one round on pull and another upon release.

These triggers greatly reduce split times between rounds while also tightening your groupings down range.

Position 1 – Safe Will not fire.

Position 2 – Semi Fires 1 round per pull.

Position 3 – Binary Fires 1 round on pull and 1 round on release.

Click Here to check the current prices of the Franklin Armory BFSIII CZ-C1

8. Franklin Armory BFSIII HK-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII HK-C1 Trigger is a three-position trigger that boasts it’s the fastest semi-automatic weapon trigger on the market.

This binary trigger is ideal for both tactical and competitive use with greatly reduced split times between rounds.

In position 1, this Franklin Armory 3-Position Trigger is safe and will not fire. In position 2, it fires one round per pull, and in position 3, it fires one round on pull and one round on release.

Best Binary Triggers

Compatible with most H&K platforms and calibers and working with any BCG, this Franklin Armory BFSIII Trigger is a must-have for all shooters.

The trigger pull is around 4.5 pounds and has an ambidextrous safety selector.

The safety selector will fit in most two and three-position trigger housings. Works in SP5K housings.

It will fit most HK 91, 93, & MP5 variants and clones. Some firearms may require additional fitting.

Click Here to check the current prices of the Franklin Armory BFSIII HK-C1

9. Franklin Armory BFSIII B&T-C1 Trigger

Best Binary Triggers

The Franklin Armory BFSIII B&T-C1 is a binary trigger for B&T firearms. In position 3, it will fire 1 round on Pull and 1 round on Release.

This makes it the fastest semi-automatic trigger on the market. The BFSIII is ideal for Tactical and Competition use.

The BFSIII provides greatly reduced split times between rounds and the ability to place two separate shots into a tighter group.

Best Binary Triggers

Some B&T firearms may require slight modifications to the interior of the lower plastic to properly fit our trigger.

The modification is still reverse compatible with the OEM trigger.

Position 1 – Safe Will Not Fire

Position 2 – Semi Fires 1 Round Per Pull

Position 3 – Binary Fires 1 Round on Pull and 1 Round on Release

Best Binary Triggers

Click Here to check the current prices of the Franklin Armory BFSIII B&T-C1

The Purpose of a Binary Trigger

Are there any ways you could increase shooting performance using an old AR-15? Having a binary trigger will make your shooting games more fun.

The use of these tools can help improve your practice drills. A Binary trigger increases the rate of fire by shooting a round on the trigger pull and one on the release of the trigger.

The purpose is to shoot fast. This is helpful when you may need to provide cover fire or just want to have some fun at the range or competition shooting.

How Does A Binary Trigger Work?

A Binary trigger is attached to firearms and is usually a drop in trigger group configuration. These technologies dramatically improve the firing rate.

It allows firing a single bullet at once. Upon release, the trigger triggers a second shot. You can use bullets as if they were fired automatically.

Once the trigger is pulled, the sear releases the hammer. When the hammer touches the firing pin, the gun fires. The bolt resets the hammer upon firing. Trigger springs are used to accomplish this.

When the trigger pull is then released, the firing process happens again.

Are Binary Triggers Illegal?

Not yet. Binary triggers are legal, but some states and local counties and towns have limitations on them.

It is your responsibility to know the local laws in your area. Federally there has been no determination on them, but if I had to guess, they would soon be on the chopping block just like bump stocks were.

Now might be the perfect time to pick up a few before it’s too late. Unfortunately, gun rights are always on the defensive.

Federal authorities have recently attempted to ban devices that make semi-automatic functions more comparable in functionality to fully automatics.

Earlier this year, a federal district attorney said he was considering a similar measure against the alleged manufacturer.

Binary Trigger vs Bump Stock

Bump stocks utilize a technique called bump firing. All a bump stock does is an aid in this technique.

Bump firing is not accurate or very controllable or consistent. You are essentially letting the recoil of firing help you slap the trigger.

Also, bump stocks have now been banned. Using a binary trigger is a much better way of shooting fast. Shots are more controllable and accurate, and you can select from semi-automatic or binary modes.

Having a good binary trigger is the superior way to shoot fast if you want to.

Binary Trigger vs Full Auto

A Binary trigger is not a fully automatic trigger. A binary trigger fires a single round on the pull and then one on the release.

Full auto keeps firing while the trigger is held down. Full auto firearms are strictly regulated; owning one is impossible for most citizens. Also, even if you can legally own one in your state, the entire process is a huge headache.

Just not worth it currently, in my opinion. Maybe one day, the laws will change, and full autos will become a more viable option and you will be able to own a machine gun more easily and legally.

That’s the great thing about a binary trigger system, though. You get close to full auto without the headache. Currently, they are legal, but in the future, I can see the binary firing system being banned, unfortunately.

Again, always make sure you know and follow your specific local laws.

Is The Franklin Armory Binary Trigger The Best

The Franklin Armory binary trigger is well known and one of the best manufacturers of them. They have a smooth trigger pull and are a drop in trigger system.

The trigger system can be purchased in a standard curved trigger or a straight trigger for most of their models.

Most people choose to go with the standard curved trigger because it is familiar, and the metal trigger pull weight feels natural.

Franklin Armory binary triggers work great and allow you to cycle from semi-automatic to binary mode. Many people have used them and stand by how great their binary triggers work.

Franklin Armory triggers are some of the best on the binary trigger market.

Binary Trigger FAQ

Who makes the best binary trigger system?

The Franklin Armory binary trigger is one of the best binary trigger systems on the market. They are a good balance of cost, performance, and reliability.

What is the fastest binary trigger?

The Franklin Armory AR-15 Binary Firing System GEN 3 (BFSIII) is a 3-position, straight trigger. In position 3, it fires one round on pull and one round on release, making it the fastest semi-automatic trigger on the market. This trigger is ideal for both tactical and competition use.

Is a binary trigger worth it?

Yes, they have a high firing rate and are worth it at the range. A binary trigger system is as close to full auto as possible.

Are binary triggers legal?

Binary triggers are legal in most states. Always make sure you check your local laws before purchasing one.

Are binary triggers faster than full auto?

Binary triggers are not as fast as a fully automatic rifle but are about as close as you can get while staying legal.

Complete List of Items Mentioned

(Click the links for the most up to date prices)

  • Franklin Armory BFSIII AR-C1 Trigger (AR-15)
  • FosTech Outdoors Echo AR II Trigger (AR-15)
  • Franklin Armory BFSIII AK-C1 (AK-47)
  • Franklin Armory BFSIII 22-C1 (Ruger 10/22)
  • Franklin Armory BFSIII PC-C1 (Ruger Charger)
  • Franklin Armory BFSIII CZ-S1 (CZ Scorpion)
  • Franklin Armory BFSIII CZ-C1 (CZ Scorpion)
  • Franklin Armory BFSIII HK-C1 (H&K)
  • Franklin Armory BFSIII B&T-C1 (B&T)

Have you ever used a binary trigger? Do you like using a binary trigger? What is your favorite binary trigger?

Let me know in the comments below.

Further reading on Firstworldcrusader.com: Are you interested in learning more about guns and gear?

This list of the Best Red Dot Sights can help you choose the best optic for your rifle.

In addition, here are the Best AR-15 Upgrades & Accessories that can help you get more out of your primary battle rifle.