How To Install/Remove Round Retainer Clip/Shell Catch/Bolt Release/Reassemble On Benelli M4 Shotgun

Published on May 6, 2024
Duration: 11:59

This guide details the process of replacing the shell latch (round retainer clip) on a Benelli M4 shotgun. It covers the necessary tools, step-by-step disassembly and reassembly procedures, and crucial details like ensuring the roll pin is set to the correct depth to avoid operational issues. The video also touches on common loading and feeding problems that can arise from a faulty shell latch.

Quick Summary

To replace the shell latch on a Benelli M4, ensure the firearm is unloaded, then disassemble the barrel, handguard, and bolt carrier. Carefully remove the trigger assembly pin and trigger group. Use a roll pin punch and hammer to drive out the old roll pin from the ejection port side. Install the new shell latch with its spring, then drive in the new roll pin, ensuring it sits just below the receiver notch to avoid bolt interference.

Chapters

  1. 00:00Introduction & Unloading
  2. 00:41Removing Old Shell Retainer Clip
  3. 01:15Disassembling Barrel & Handguard
  4. 01:39Removing Bolt Carrier
  5. 02:06Removing Trigger Assembly Pin
  6. 02:25Removing Trigger Assembly
  7. 03:01Tools Needed for Shell Latch Replacement
  8. 03:13Locating Shell Latch Roll Pin
  9. 03:33Removing Shell Latch Roll Pin
  10. 04:02Shell Latch & Spring Assembly
  11. 04:13Installing New Shell Latch & Spring
  12. 04:45Inserting New Roll Pin
  13. 05:10Tapping in Roll Pin Correctly
  14. 06:04Checking Roll Pin Depth
  15. 07:03Reinstalling Trigger Assembly
  16. 08:03Reinstalling Bolt Carrier
  17. 08:36Final Bolt Carrier Check
  18. 09:14Reassembling Barrel & Handguard
  19. 09:47Final Assembly & Function Check
  20. 09:55Reason for Replacement: Loading Issues

Frequently Asked Questions

What are the common tools needed to replace the shell latch on a Benelli M4?

You'll need a punch set, a hammer, and specifically a roll pin punch (around 3/32") to remove and install the roll pin securing the shell latch. A flathead screwdriver may be useful for initial bolt manipulation.

Why would someone need to replace the shell latch on their Benelli M4?

A primary reason is to fix loading and feeding issues. A worn or damaged shell latch can cause rounds to misfeed or fail to enter the chamber correctly, impacting the shotgun's reliability.

What is the critical step when installing the new roll pin for the Benelli M4 shell latch?

The most critical step is ensuring the roll pin is not driven too deep. It should sit just below the receiver notch to avoid interfering with the bolt carrier's movement, which could prevent reassembly or cycling.

How do you ensure the new shell latch spring is installed correctly?

When installing the new shell latch, ensure its spring is properly seated within the latch assembly and maintains tension. It should drop into its cavity in the receiver without binding or getting mangled.

More Gunsmithing & DIY Videos You Might Like

More from Gear And Guns

View all →