Mossberg 500/590 Firearm Maintenance: Part 4 Reassembly

Published on October 28, 2013
Duration: 2:01

This guide details the reassembly process for the Mossberg 500/590 shotgun, presented by a Brownells technician. It covers critical steps like reinserting the elevator assembly, bolt, forend, slide assembly, shell stops, and trigger group. The guide emphasizes proper alignment and the use of a nylon hammer for pins, concluding with barrel attachment and a crucial function test.

Quick Summary

Reassemble your Mossberg 500/590 by first reinserting the elevator assembly with the safety 'on'. Then, install the bolt, forend, slide assembly, and shell stops. Secure the trigger group with its retaining pin, using a nylon hammer if needed. Finally, attach the barrel and perform a function test without ammunition to ensure proper operation.

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

How do you reinsert the elevator assembly on a Mossberg 500/590?

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 in the top of the receiver. Ensure the safety is in the 'on' position during this step.

What is the correct way to install the trigger group during Mossberg 500/590 reassembly?

Hold the shell stops in place and 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 to drive it flush if necessary.

What is a crucial step after reassembling a Mossberg 500/590 shotgun?

After reassembling the Mossberg 500/590, it is crucial to perform a function test without ammunition. This involves racking the action to ensure proper lockup and operation before live firing.

What tools are needed for Mossberg 500/590 reassembly?

For the Mossberg 500/590 reassembly, a small nylon hammer is recommended for driving retaining pins flush. Other steps involve hand manipulation and alignment of components.

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