What Makes a Patriot Ordnance Factory AR Upper Special?

Published on July 3, 2019
Duration: 12:29

This guide details the assembly of a Patriot Ordnance Factory (POF) AR upper receiver, highlighting key components and their unique features. It covers the installation of the POF Strike Eagle charging handle, the heat-sink barrel nut, the handguard with anti-rotation tabs, and the POF barrel. The guide also explains the benefits of the POF Dictator adjustable gas block with its straight gas tube design and the POF E2 chamber's gas-assisted extraction.

Quick Summary

Patriot Ordnance Factory (POF) AR uppers stand out with features like a large aluminum heat sink barrel nut for superior heat dissipation, the E2 chamber for improved extraction via gas assist, and the Dictator adjustable gas block with a straight gas tube to minimize pressure and heat buildup.

Chapters

  1. 00:00Introduction to POF USA Uppers
  2. 00:55POF USA Strike Eagle Charging Handle Features
  3. 01:17POF USA Heat Sink Barrel Nut Explained
  4. 02:08POF USA Handguard Design and Installation
  5. 03:27POF USA Barrel Fitment and Accuracy
  6. 03:59POF USA E2 Chamber Technology
  7. 05:48POF USA Dictator Adjustable Gas Block
  8. 06:31POF USA Barrel Profile and Twist Rate
  9. 06:46Assembly Overview and Future Plans

Frequently Asked Questions

What makes the POF USA barrel nut unique?

The POF USA barrel nut is exceptionally large and made of aluminum, designed to act as a significant heat sink. It features fins that increase its surface area, helping to dissipate heat away from the rifle's chamber and barrel.

How does the POF USA E2 chamber improve extraction?

The E2 chamber has small slits along the sides of the casing area. After firing, a small amount of gas escapes through these slits to push against the casing, aiding in extraction and reducing strain on the firearm's action.

What are the advantages of the POF USA Dictator adjustable gas block?

The Dictator gas block features a straight gas tube, which reduces pressure and heat buildup commonly found at the bend of traditional gas tubes. It also offers multiple adjustment positions for fine-tuning the rifle's gas system for optimal cycling and recoil.

How does POF USA ensure barrel accuracy in their uppers?

POF USA barrels are rifled in-house and designed for an extremely snug fit within the receiver. This precise fitment is crucial for maintaining consistency shot after shot, thereby maximizing the potential for accuracy.

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