FRANKLIN ARMORY Binary Firing System (BFSIII) Trigger for Bushmaster ACR

The Franklin Armory Binary Firing System (BFSIII) trigger for Bushmaster ACR gives you control over how your rifle fires with a simple three-position design. Whether you're running competitions, training at the range, or working through tactical drills, this trigger lets you choose between safe, traditional semi-automatic, or binary firing mode—giving you the speed and precision that separates a good shooter from a great one.

The BFSIII's binary mode is where things get interesting. In this setting, the trigger fires one round on your pull and another on release, effectively doubling your rate of fire while staying within semi-automatic legal limits. That translates to tighter shot groupings, faster split times between rounds, and the kind of performance edge that matters on the clock or in competition. The three positions are intuitive: Position 1 keeps the gun safe and prevents firing, Position 2 delivers standard semi-automatic function (one round per trigger pull), and Position 3 engages binary mode.

This is a purpose-built trigger for shooters who demand more from their ACR platform rifle. If you're serious about reducing lag between shots and placing precision rounds downrange quickly, the BFSIII is built for that mission. Installation is straightforward for anyone familiar with ACR trigger work.

Key Features

• Three-position trigger design: Safe, Semi-Automatic, and Binary modes
• Binary mode fires one round on pull and one on release for increased rate of fire
• Reduces split times between rounds and tightens shot grouping
• Purpose-built for tactical, competition, and training applications
• Designed specifically for Bushmaster ACR platform rifles

Specifications

Frequently Asked Questions

Will this trigger work with my Bushmaster ACR?

Yes, the BFSIII is designed specifically for the Bushmaster ACR platform.

What's the difference between the semi-automatic and binary modes?

In semi-automatic mode (Position 2), the trigger fires one round per pull. In binary mode (Position 3), the trigger fires one round when you pull it and a second round when you release it, effectively doubling your potential rate of fire.

Is this legal where I live?

The BFSIII is a semi-automatic trigger system. However, this product is not available for sale in New York, Delaware, or New Jersey due to state regulations.

What's the purpose of binary mode if I'm just hunting?

While the BFSIII excels in tactical and competition environments where faster split times matter, binary mode isn't necessary for most hunting applications. The semi-automatic mode alone provides standard hunting functionality.