How to Install an AR-15 Pivot Pin Presented by Larry Potterfield of MidwayUSA

Published on July 19, 2018
Duration: 1:42

This guide details the process of installing an AR-15 pivot pin, presented by Larry Potterfield of MidwayUSA. It covers essential lubrication steps, the use of specialized tools like the Model 1 Sales pivot pin installation tool, and the precise manipulation required to seat the detent and secure the pin. The instruction emphasizes a methodical approach for a successful installation.

Quick Summary

Installing an AR-15 pivot pin involves lubricating the pin, spring, and detent. A specialized tool aids in capturing the spring and detent before inserting the pivot pin, which then secures itself by the detent snapping into its groove. This ensures the upper and lower receivers remain properly joined.

Chapters

  1. 00:00Introduction to Pivot Pin Installation
  2. 00:14Lubrication Steps
  3. 00:28Using the Installation Tool
  4. 00:49Installing the Spring and Detent
  5. 01:11Final Pin Installation

Frequently Asked Questions

What are the key steps to installing an AR-15 pivot pin?

The process involves lubricating the pin, spring, and detent. A specialized tool is used to hold the spring and detent while the pivot pin is inserted, ensuring the detent snaps into the pin's groove for secure retention.

What specialized tools are needed for AR-15 pivot pin installation?

A Model 1 Sales Pivot Pin Installation Tool is recommended. Additionally, a small punch is used to depress the detent, and basic lubrication like Tetra Gun Grease and oil are beneficial.

What is the function of the detent and spring in an AR-15 pivot pin assembly?

The spring provides tension, and the detent is a small pin that engages a groove on the pivot pin. This engagement prevents the pin from walking out during operation, securing the upper and lower receivers together.

Are there different methods for securing an AR-15 pivot pin?

While most AR-15s use a spring-loaded detent that snaps into a groove on the pin, some older Colt receivers historically used a screw mechanism instead of a detent.

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