Blank Firing Attachment (BFA) vs. Live Round!

Published on November 26, 2018
Duration: 8:40

This guide details the experimental procedure used to test the safety mechanism of a Blank Firing Attachment (BFA) on an AR-15/M16 style rifle. The test involves remotely firing a live round through a BFA to observe if it detaches safely, preventing injury. The video demonstrates that the BFA successfully sheared off without damaging the rifle, confirming its safety design. A follow-up live fire test ensures the rifle's continued functionality. Instruction is provided by Military Arms Channel, demonstrating high expertise in firearm mechanics and safety protocols.

Quick Summary

A Blank Firing Attachment (BFA) on an AR-15/M16 cycles the action with blanks by trapping gas. Critically, it's designed to safely shear off if a live round is fired, preventing damage to the rifle and shooter. Military Arms Channel demonstrates this safety feature using a remote firing setup with M855 ammunition.

Chapters

  1. 00:10Introduction to BFAs
  2. 00:37BFA Mechanics Explained
  3. 01:42Blank vs. Live Ammo Comparison
  4. 02:40The BFA Safety Myth/Experiment
  5. 03:37Remote Firing Safety Setup
  6. 05:18Live Fire Test Results
  7. 06:57Rifle Functionality Check

Frequently Asked Questions

How does a Blank Firing Attachment (BFA) work on an AR-15?

A BFA traps gas pressure at the muzzle. This pressure is redirected back through the rifle's gas system, typically direct impingement, to cycle the action, which blank ammunition alone cannot do.

What is the safety purpose of a BFA when a live round is fired?

The BFA is designed to shear off safely if a live round is accidentally fired through it. This prevents the live round's full pressure from being contained by the BFA, protecting the barrel and shooter.

What ammunition was used in the live fire test of the BFA?

The live fire test utilized ZQI 5.56x45mm M855 Ball ammunition. This is a common military-spec round for AR-15 and M16 platforms.

Can a live round damage an AR-15 if fired through a BFA?

When a BFA functions as designed, it should shear off, preventing damage to the barrel and internal components of the AR-15. The video confirms this safety feature works as intended.

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