Mossberg 500/590 Magpul Forend Installation: Keep your Heatshield!

Published on October 12, 2016
Duration: 7:37

This guide details the installation of the Magpul MOE M-LOK Forend onto Mossberg 500 and 590 series shotguns. It covers compatibility checks based on action tube length and provides a crucial step for modifying the factory heatshield to prevent interference. The instructions are delivered with the authority of an experienced firearm hobbyist and builder.

Quick Summary

Installing the Magpul MOE M-LOK Forend on a Mossberg 500/590 requires verifying action tube length (7 5/8" or 6 3/4") and potentially modifying the factory heatshield by crimping it to avoid pump interference. Use the provided Magpul wrench for installation.

Chapters

  1. 00:00Introduction and Compatibility
  2. 00:37Mossberg 500 Forend Variations
  3. 02:02Magpul Forend Features
  4. 02:45Heatshield Modification
  5. 03:16Disassembly and Removal
  6. 05:06Installation and Reassembly

Frequently Asked Questions

What is required to install the Magpul MOE M-LOK Forend on a Mossberg 500?

Installation requires the Magpul MOE M-LOK Forend, the included Magpul wrench, and potentially a rubber hammer. Crucially, you must ensure your Mossberg 500 has the correct action tube length (7 5/8" or 6 3/4") and may need to modify the factory heatshield.

How do I retain the factory heatshield when installing the Magpul forend?

To keep the factory heatshield, it must be carefully crimped in a vise to conform to the barrel's contour. This ensures it doesn't interfere with the forend's pump action during operation, preventing cycling issues.

Is the Magpul MOE M-LOK Forend compatible with all Mossberg 500 shotguns?

No, compatibility depends on the action tube length. It fits Mossberg 590, 590A1, and specific Mossberg 500 models that utilize either a 7 5/8" or 6 3/4" action tube. Always verify your shotgun's configuration.

What are the main benefits of the Magpul MOE M-LOK Forend?

The Magpul MOE M-LOK Forend offers enhanced modularity with M-LOK slots for accessories, improved ergonomics with integrated hand stops, and durable reinforced polymer construction, updating the classic Mossberg platform.

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