The Original AR-15: Serial Number 6 in Original Configuration

Published on November 1, 2025
Duration: 1:01

This guide details the examination of Armalite AR-15 Serial Number 6, a rare example of the original configuration. Key features include its 6 lb loaded weight, a unique 25-round straight magazine, a top-mounted charging handle with a protective guard, a woven fiberglass stock, a pencil barrel profile, and a plain muzzle. The information is presented with high authority by Ian McCollum, offering deep insights into the AR-15's design evolution.

Quick Summary

Armalite AR-15 Serial Number 6 is a rare example of the original configuration, weighing 6 lbs loaded and featuring a unique 25-round straight magazine. It has a top-mounted charging handle with a guard, a woven fiberglass stock, and a thin pencil barrel with a plain muzzle, reflecting early design choices before the widespread adoption of muzzle devices.

Chapters

  1. 00:00Introduction to AR-15 Serial Number 6
  2. 00:22Weight and Magazine Capacity
  3. 00:29Charging Handle and Guard
  4. 00:37Fire Selector and Materials
  5. 00:51Barrel Profile and Muzzle

Frequently Asked Questions

What are the key distinguishing features of the original Armalite AR-15 Serial Number 6?

The original Armalite AR-15 Serial Number 6, in its as-manufactured condition, weighs 6 lbs loaded, uses a unique 25-round straight magazine, features a top-mounted charging handle with a guard, has a woven fiberglass stock, and a thin pencil barrel with a plain muzzle.

What material is the stock made of on the original AR-15?

The stock on the original Armalite AR-15, as seen on Serial Number 6, is made of a woven fiberglass material. This was a characteristic of early production models before later material changes.

Why does the original AR-15 have a plain muzzle?

The original AR-15, like Serial Number 6, has a plain muzzle because, at the time of its manufacture, there was no perceived need for a muzzle brake or flash suppressor. Design priorities focused on other aspects of the rifle's functionality.

What is the significance of AR-15 Serial Number 6?

AR-15 Serial Number 6 is significant as it is believed to be the only rifle from the original Armalite production batch still in its original, as-manufactured condition, providing crucial insights into the early AR-15 design evolution.

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