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Upper Authority
  • Equipment
  • Builds
  • Fundamentals
  • Maintenance
  • Hunting
  • Apparel

Layout F (with load more)

Budget AR Build Guide: Smart Parts and Cost Breakdown

Best AR Upper Receivers by Use Case

Upper vs Lower Receiver: Key Differences Explained

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

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Featured Posts

  • AR-15 free-float handguard with M-LOK slots and top Picatinny rail
    Fundamentals What Is an AR-15 Handguard? Handguards & Rail...
  • AR-15 ambidextrous charging handle
    Fundamentals What Is a Charging Handle? How an AR-15 Charging...
  • AR-15 fire control group components including trigger, hammer, disconnector, springs, and pins
    Fundamentals What Is a Fire Control Group? Understanding the...

Upper Authority

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

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

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