How to Install an AR-15 Bolt Stop/Bolt Catch Presented by Larry Potterfield of MidwayUSA

Published on July 19, 2018
Duration: 2:02

This guide details the installation of an AR-15 bolt stop assembly, presented by Larry Potterfield of MidwayUSA. It covers component preparation, securing the receiver, and the precise method for installing the roll pin to prevent damage. The process emphasizes attention to detail for a correct and functional installation, crucial for reliable firearm operation.

Quick Summary

Installing an AR-15 bolt stop involves securing the lower receiver with an action block and vice, preparing the four-part assembly (release, roll pin, spring, plunger) with grease, and carefully starting the roll pin with a specialized punch. Protecting the receiver's finish with tape and completing the pin installation with an extended punch are key steps. A final function check with a magazine ensures correct operation.

Chapters

  1. 00:00Introduction to Bolt Stop Installation
  2. 00:15Bolt Stop Components and Preparation
  3. 00:38Initial Assembly with Action Block
  4. 01:00Securing Receiver in Vice
  5. 01:13Roll Pin Installation Technique
  6. 01:46Function Check with Magazine

Frequently Asked Questions

What are the essential parts of an AR-15 bolt stop assembly?

The AR-15 bolt stop assembly typically includes the release lever, a roll pin to secure it, a spring that provides tension, and a plunger that interacts with the bolt catch mechanism.

What tools are needed to install an AR-15 bolt stop?

Key tools for installing an AR-15 bolt stop include a vice, a Crosstac action block for receiver stability, masking tape for finish protection, a Crosstac roll pin starter punch, and an extended drive punch to seat the roll pin correctly.

How do you ensure the AR-15 bolt stop is installed correctly?

After installing the roll pin, a crucial step is to insert a magazine. The follower should engage the bolt stop, pushing it upward to catch the bolt carrier group when the magazine is empty, confirming proper function.

Why is protecting the AR-15 receiver finish important during bolt stop installation?

Protecting the receiver finish is vital because the roll pin installation process can easily mar the surface if not done carefully. Using masking tape and specialized starter punches helps prevent cosmetic damage.

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