Quick Tip: How To Use The Brownells Offset Buffer Retainer

Published on March 22, 2024
Duration: 9:17

This video demonstrates the installation and function of the Brownells Offset Buffer Retainer. It addresses common AR-15 issues where the buffer may be too far forward, impacting the buffer retainer during assembled operation. The offset retainer provides a solution for improperly drilled lower receivers, overly long barrel nut threads, or short bolt carrier groups.

Quick Summary

The Brownells Offset Buffer Retainer addresses AR-15 buffer alignment problems where the buffer impacts the retainer when assembled. This issue can stem from misdrilled lower receiver holes, long barrel nut threads, or short bolt carrier groups, leading to damage. The offset retainer corrects this by altering the retainer's position.

Chapters

  1. 00:00Introduction to Offset Buffer Retainer
  2. 00:26What is a Buffer Retainer?
  3. 00:58Why You Need an Offset Buffer Retainer
  4. 01:34Assembled Firearm Buffer Contact
  5. 02:21Consequences of Buffer Impact
  6. 03:13Cause 1: Lower Receiver Hole Placement
  7. 03:51Cause 2: Upper Receiver Thread Length
  8. 05:02Cause 3: Short Bolt Carrier Group
  9. 05:42Installation Demonstration
  10. 07:35How the Offset Retainer Works
  11. 08:07When You Need This Part

Frequently Asked Questions

What problem does the Brownells Offset Buffer Retainer solve?

The Brownells Offset Buffer Retainer solves issues where the AR-15's buffer sits too far forward and impacts the buffer retainer when the firearm is assembled. This can be caused by manufacturing tolerances in the lower receiver, an overly long barrel nut thread, or a short bolt carrier group.

How can I tell if my AR-15 has a buffer retainer issue?

Signs of a buffer retainer issue include chatter marks or teeth marks along the outside edge of your buffer. This indicates the buffer is repeatedly striking the retainer during the firearm's cycling process, which can damage both parts and cause malfunctions.

What are the common causes of a buffer impacting the retainer?

The most common causes are a misdrilled buffer retainer pin hole in the lower receiver, an excessively long threaded portion for the barrel nut on the upper receiver, or a bolt carrier group that is too short to properly push the buffer back.

Is the Brownells Offset Buffer Retainer difficult to install?

No, the installation is straightforward. It involves removing the standard buffer retainer and inserting the offset version into the same pin hole in the lower receiver. The buffer and spring are then reinstalled as usual.

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