Rock River AR Pistol Buffer Tube

Published on January 13, 2014
Duration: 7:16

This video details the installation of a Rock River Arms pistol buffer tube on an AR-15 pistol. It covers essential steps like safety checks, disassembly, and the specific compatibility issue with standard end plates due to the tube's design. The upgrade is primarily for fitting a Sig SB15 brace, with legal considerations for AR pistols also mentioned.

Quick Summary

The Rock River Arms pistol buffer tube features a fluted and knurled finish for improved grip and aesthetics. A key compatibility note is its lack of a standard slot for retaining ring nubs, requiring modification or an alternative like the Magpul ASAP.

Chapters

  1. 00:00Intro: Rock River Arms Pistol Buffer Tube
  2. 00:20Safety Check & Prep
  3. 00:44AR Pistol Disassembly
  4. 01:06Removing Old Extension Tube
  5. 02:13Compatibility: Retaining Ring Issue
  6. 03:19Installing New Buffer Tube
  7. 04:57Final Assembly & Testing
  8. 05:41Sig SB15 Brace & Legal Notes

Frequently Asked Questions

What are the key features of the Rock River Arms pistol buffer tube?

The Rock River Arms pistol buffer tube is noted for its high-quality finish, featuring distinct fluting and knurling on the exterior. This design enhances grip and provides a unique aesthetic for AR pistol builds.

What compatibility issue exists with the Rock River Arms pistol buffer tube?

A significant compatibility issue is that the Rock River Arms tube lacks the standard slot for a retaining ring nub. This requires either modifying a standard end plate or using an alternative like the Magpul ASAP sling attachment.

How do you install the Rock River Arms pistol buffer tube?

Installation involves re-installing the takedown pin spring, applying Blue Loctite 242 to the threads, and carefully screwing in the new tube while depressing the buffer retainer pin to ensure proper indexing.

Why would someone install a Rock River Arms pistol buffer tube?

The primary reason highlighted in the video is to ensure compatibility with accessories like the Sig SB15 Pistol Stabilizing Brace. It's an upgrade for AR pistol builds requiring specific brace fitment.

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