Brownells - Installing A Two Piece Four Rail Handguard

Published on August 20, 2012
Duration: 1:23

This guide details the process of installing a two-piece four-rail accessory handguard system on an AR-15 platform. It emphasizes the critical safety step of verifying the firearm is unloaded. The procedure involves using a specialized tool to compress the Delta ring for the removal of factory handguards and the subsequent installation of the new rail system, noting the specific angled fit required for some aftermarket designs.

Quick Summary

To install a two-piece four-rail handguard on an AR-15, first ensure the firearm is unloaded. Use a tool like the Brownells forearm removal tool to compress the Delta ring, remove the factory forearms, and then install the new handguard, noting its angled fit over the barrel nut.

Chapters

  1. 00:00Introduction and Safety Check
  2. 00:15Using the Forearm Removal Tool
  3. 00:31Removing Factory Forearms
  4. 00:50Installing the New Handguard
  5. 01:14Final Checks and Completion

Frequently Asked Questions

What tool is needed to install a two-piece four-rail handguard on an AR-15?

You will need a specialized tool, such as the Brownells forearm removal tool, to compress the Delta ring. This allows for the removal of the factory handguards and the installation of the new accessory rail system.

What is the first step before installing an AR-15 handguard?

The absolute first step is to ensure the firearm is unloaded and verified empty. This is a critical safety measure that must be performed before any disassembly or installation procedures begin.

How do two-piece four-rail handguards typically differ from factory forearms during installation?

Two-piece four-rail handguards are often designed to be installed at an angle, fitting over the notches on the barrel nut. This contrasts with the 90-degree installation method sometimes used for factory forearms.

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