Upper Authority
  • Equipment
  • Builds
  • Fundamentals
  • Maintenance
  • Legal
  • About
Upper Authority
  • Equipment
  • Builds
  • Fundamentals
  • Maintenance
  • Legal
  • About

Layout F (with load more)

Mil-Spec vs Commercial AR Parts: What Actually Matters

Bolt Carrier Group Parts: Complete Breakdown and Function

How the Bolt Carrier Group Works: A Clear Breakdown

How an AR-15 Works: Complete Cycling Process Explained

AR-15 Parts List: Complete Breakdown of Every Component

What Is a Lower Receiver? Function, Parts, and Legal Overview

What Is an Upper Receiver? Complete Breakdown

AR Platform Explained: Complete Beginner Guide

Featured Posts

  • Fundamentals AR-15 Gas Port Size Explained: Reliability, Recoil...
  • Infographic showing overgassed, ideal, and undergassed AR-15 ejection patterns with recoil and cycling characteristics.
    Maintenance Overgassed vs Undergassed AR-15: Symptoms, Causes...
  • Close-up of an AR-15 barrel with gas block and gas tube on a light background
    Fundamentals AR-15 Gas System Explained: How It Actually Works

Upper Authority

Upper Authority is a structured educational resource focused on AR platform configuration, component evaluation, and performance consistency.

Start Here:

AR Platform Explained

Equipment Guides

  • Best Upper Receivers
  • Best Bolt Carrier Groups
  • Best AR Optics
  • Budget Upper Receiver Guide
  • AR-10 vs AR-15 Comparison

Explore

Equipment

Builds

Fundamentals

Maintenance

Legal

Copyright © 2026 Upper Authority. All rights reserved.