How to Assemble a Slide for a Polymer80

Published on October 3, 2017
Duration: 4:37

This guide details the step-by-step process for assembling a slide for a Polymer80 receiver, specifically using a Brownells Window Slide compatible with RMR sights. It covers the installation of internal components like the safety plunger, extractor, firing pin assembly, and back cover plate. The guide also demonstrates the proper installation of suppressor-height sights using specialized tools and the mounting of an RMR optic. Finally, it includes barrel and recoil spring assembly, culminating in mounting the completed slide to the receiver and performing a function check. Instruction is provided by a Brownells Representative, indicating a high level of expertise.

Quick Summary

Assemble a Polymer80 slide using a Brownells Window Slide by first installing internal components like the safety plunger and firing pin assembly. Then, use a Glock front sight tool for the front sight and an MGW sight pusher for the rear sight. Mount your RMR optic, insert the barrel and recoil spring, and complete the assembly by mounting the slide to the receiver and performing a function check.

Chapters

  1. 00:00Introduction to Polymer80 Slide Assembly
  2. 00:11Installing Safety Plunger and Extractor
  3. 00:28Firing Pin and Extractor Plunger Spring
  4. 00:47Back Cover Plate Installation
  5. 01:12Front Sight Installation
  6. 01:48Rear Sight Installation with MGW Pusher
  7. 02:58Mounting the Trijicon RMR Optic
  8. 03:31Barrel and Recoil Spring Assembly
  9. 03:47Final Assembly and Function Check

Frequently Asked Questions

What are the key steps to assemble a Polymer80 slide with a Brownells Window Slide?

Begin by installing internal parts like the safety plunger, extractor, and firing pin assembly. Then, install suppressor-height sights using appropriate tools, mount an RMR optic, and insert the barrel and recoil spring assembly. Finally, mount the slide to the receiver and perform a function check.

What tools are essential for installing sights on a Polymer80 slide?

For front sight installation, a Glock front sight tool is used. For rear sight installation, an MGW sight pusher (Model #309 GLK) is recommended, especially for tritium sights, to avoid damage from hammering.

How do you ensure proper installation of internal slide components?

Ensure the safety plunger is fully depressed for extractor seating. The back cover plate clicks into place when the firing pin assembly and extractor plunger are correctly depressed. Proper torquing of optic screws is also crucial.

What is the purpose of a Brownells Window Slide?

A Brownells Window Slide is designed with a top window cut that allows for the direct mounting of red dot sights, such as the RMR, while also accommodating suppressor-height iron sights.

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