Mossberg 500/590 Firearm Maintenance: Part 4 Reassembly

Published on October 28, 2013
Duration: 2:01

This video details the reassembly process for the Mossberg 500/590 shotgun. Key steps include correctly reinserting the elevator assembly, installing the bolt and forend, meshing the slide assembly with action arms, and securing the trigger group. The final steps involve attaching the barrel and performing a function test to ensure proper lockup.

Quick Summary

To reassemble a Mossberg 500/590, start by inserting the elevator assembly with the safety 'on'. Then, install the bolt and forend, followed by the slide assembly, ensuring all parts mesh correctly. Finally, install the trigger group and barrel, completing with a function test without ammunition.

Chapters

  1. 00:00Elevator Assembly Reinsertion
  2. 00:21Bolt and Forend Installation
  3. 00:34Slide Assembly and Shell Stops
  4. 00:55Trigger Group Reassembly
  5. 01:15Barrel Attachment and Function Test

Frequently Asked Questions

What is the first step in reassembling the Mossberg 500/590 receiver?

Begin by reinserting the elevator assembly into the rear of the receiver. Gently squeeze the two halves together and align the pivot studs with their holes. Ensure the safety is in the 'on' position during this critical step.

How do you install the bolt and forend during Mossberg 500/590 reassembly?

Insert the bolt through the front of the receiver. Then, slide the forend back onto the magazine tube and carefully guide the action arms into the receiver.

What is the correct procedure for installing the trigger group on a Mossberg 500/590?

Hold the shell stops in place. Work the front of the trigger group housing into the gun first, then push the rear into place. Align the holes and start the retaining pin by hand, using a nylon hammer if needed.

Why is a function test important after reassembling a Mossberg shotgun?

A function test, performed without ammunition, is crucial after reassembly to ensure the action cycles correctly and the components lock up properly. This confirms the firearm is safe to operate.

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