Binary Trigger Setup in an RPK

Published on May 27, 2020
Duration: 10:15

This guide details the installation of a Franklin Armory BFSIII AK-C1 binary trigger into an RPK-style rifle (AES-10B). It covers the trigger's modes of operation (Safe, Semi, Binary) and highlights potential issues like suppressor alignment on the RPK. The video emphasizes that binary triggers are not machine guns under NFA definitions, functioning as rapid semi-automatic devices.

Quick Summary

A binary trigger, such as the Franklin Armory BFSIII AK-C1, fires one round on trigger pull and another on release, enabling rapid semi-automatic fire. It is not classified as a machine gun under NFA rules. Installation on an RPK may require checking barrel concentricity for suppressor use.

Chapters

  1. 00:00Intro & Unboxing BFSIII AK-C1
  2. 00:45RPK Firing Demo with Binary Trigger
  3. 02:04Binary Trigger Modes Explained
  4. 03:31RPK Model & Suppressor Concerns
  5. 05:01Binary Trigger vs. Machine Gun (NFA)
  6. 07:38Understanding Hammer Follow

Frequently Asked Questions

What is a binary trigger and how does it work on an RPK?

A binary trigger, like the Franklin Armory BFSIII AK-C1, fires one round when the trigger is pulled and a second round when the trigger is released. This allows for a rapid rate of fire on platforms like the RPK, but remains classified as semi-automatic under NFA regulations.

Is a binary trigger considered a machine gun?

No, binary triggers are not considered machine guns by the ATF. They function by discharging one round per trigger pull and one per trigger release, meaning a single trigger function results in only one shot. This distinguishes them from automatic fire.

What are the selector modes on the BFSIII AK-C1 trigger?

The Franklin Armory BFSIII AK-C1 features three selector positions: 'Safe' for safe operation, 'Semi' for standard semi-automatic fire (one round per pull), and 'Binary' for firing one round on the pull and another on the release.

What potential issues can arise when installing a binary trigger on an RPK?

When installing a binary trigger on an RPK like the AES-10B, especially if planning to use a suppressor, it's crucial to check barrel concentricity. Non-concentric barrels can lead to dangerous baffle strikes within the suppressor.

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