Franklin Armory® BFSIII® AK-C1



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


* Release round can be canceled by simply moving our Patent Pending selector out of Binary® mode while holding the trigger back

* Easy to install

* Positive reset on release phase

* Great for competition shooters, tactical shooters, and recreational enthusiasts

* Trigger Pull weight ~5.5 lbs. +/- .5 lbs.

* The AK-C1 is designed for use with most standard caliber AK platforms (7.62×39, 5.45×39, and 5.56 NATO)


Enhancing Your AK-47: The Ultimate Guide to Binary Triggers

The AK-47 is a legendary rifle, renowned for its reliability and widespread use across the world. For enthusiasts and tactical shooters looking to upgrade their AK-47, a binary trigger can be a game-changing addition. This comprehensive guide dives deep into everything you need to know about binary triggers for AK-47s, from understanding how they work to ensuring you’re compliant with legal standards.

Introduction to Binary Triggers

binary trigger is a firing mechanism that allows a semi-automatic firearm to shoot one round on the pull of the trigger and another round upon release. This feature essentially doubles the rate of fire and is particularly appealing for AK-47 owners looking to enhance their shooting experience.

Relevance to AK-Style Rifles

The AK-style rifles, with their robust design and simple operating systems, are ideal candidates for binary trigger upgrades. Such enhancements not only improve the firing capabilities but also add an element of excitement and precision to the shooting.

How Binary Triggers Work

Binary triggers are fascinating from a mechanical perspective. They contain two separate sears: one that catches the hammer when the trigger is pulled and another that catches and releases the hammer when the trigger is released.

Comparison with Traditional Triggers

Unlike traditional single-fire triggers, which only actuate on the trigger pull, binary triggers offer a response on both the pull and the release, effectively allowing for faster firing rates without modifying the firearm’s classification as a semi-automatic.

Benefits of Installing a Binary Trigger in an AK Rifle

Installing a binary trigger in an AK-47 can significantly enhance your shooting performance. Here are some of the key benefits:

  • Enhanced Firing Rate: The ability to fire on both the pull and release doubles the potential firing rate, which can be crucial in competitive shooting or defensive scenarios.
  • Improved Performance: Many users find that binary triggers improve their overall shooting rhythm, leading to better performance and accuracy.

Choosing the Right Binary Trigger for Your AK

When selecting a binary trigger for your AK-47, consider the following factors:

  1. Compatibility: Ensure the trigger is designed for AK platforms. Not all binary triggers fit all AK variants.
  2. Brand Reliability: Opt for brands known for their quality and customer support. Companies like Franklin Armory and Rare Breed Triggers offer reputable options.
  3. User Reviews: Reading reviews can provide insights into the reliability and performance of the trigger. Products with consistent positive feedback are generally a safer bet.

Installation Guide for Binary Triggers in AK-47s

Installing a binary trigger in an AK-47 should be done with care to ensure safety and functionality. Here’s a step-by-step guide:

  1. Ensure the Firearm is Unloaded: Safety first. Always check and double-check that the firearm is completely unloaded.
  2. Disassemble the Trigger Assembly: Remove the existing trigger assembly according to the manufacturer’s instructions.
  3. Install the Binary Trigger: Follow the specific instructions provided with your binary trigger. This often involves positioning the new trigger in place and securing it with pins.
  4. Safety Check and Testing: After installation, perform a thorough safety check and test the functionality in a controlled environment.

For visual learners, here’s a detailed installation video provided by Rare Breed Trigger Co., which can be extremely helpful.

Before installing a binary trigger, it’s crucial to understand the legal implications:

  • ATF Regulations: At the federal level, binary triggers are generally legal, but always check the latest ATF guidelines.
  • State Laws: Some states have specific restrictions or bans on binary triggers. States like California, New York, and New Jersey have stringent laws that might prohibit or restrict their use. Always consult local state laws before making a purchase.

User Reviews and Experiences

Gathering feedback from current users of binary triggers can provide valuable insights. Many users report significant improvements in firing rate and overall satisfaction with their upgraded setup. However, some users have noted the need for occasional adjustments and maintenance to keep the trigger performing optimally.

Maintenance and Care

To ensure your binary trigger continues to operate effectively:

  • Regular Cleaning: Like any firearm component, keeping your binary trigger clean will prevent malfunctions.
  • Lubrication: Proper lubrication is essential for maintaining the smooth operation of the trigger mechanism.
  • Inspections: Regularly inspect the trigger for wear and tear, especially after extensive use.


Upgrading your AK-47 with a binary trigger can significantly enhance your shooting experience, providing a higher rate of fire and improved performance. However, it’s crucial to choose the right product, install it correctly, and comply with all legal requirements. Whether for competitive shooting, recreational use, or tactical applications, a binary trigger can be a worthwhile investment for any serious AK-47 owner.


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