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Home » Fundamentals » Page 2

Fundamentals

Close-up of an AR-15 upper and lower receiver separated at the takedown pins
Fundamentals

Upper vs Lower Receiver: Key Differences Explained

1 month ago
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Close-up of an AR-15 buffer tube showing the rear profile and cylindrical body on a white background
Fundamentals

Mil-Spec vs Commercial AR Parts: What Actually Matters

2 months ago
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Close-up of an AR-15 bolt carrier group showing the carrier body, gas key, and bolt face against a black background
Fundamentals

How the Bolt Carrier Group Works: A Clear Breakdown

2 months ago
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Close-up of an AR-15 receiver area showing the upper and lower receiver, trigger, magazine well, and optic mounted on the rail
Fundamentals

How an AR-15 Works: Complete Cycling Process Explained

2 months ago
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Blueprint-style diagram of an AR-15 rifle showing internal and external components
Fundamentals

AR-15 Parts List: Complete Breakdown of Every Component

2 months ago
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Close-up view of an AR-15 lower receiver showing the trigger, safety selector, and magazine well
Fundamentals

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

2 months ago
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Close-up of an AR-15 upper receiver showing the ejection port and top rail
Fundamentals

What Is an Upper Receiver? Complete Breakdown

2 months ago
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Exploded blueprint view of an AR-15 platform rifle showing separated modular components including upper receiver, lower receiver, handguards, stock, and magazines
Fundamentals

AR Platform Explained: Complete Beginner Guide

3 months ago
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Featured Posts

  • AR-15 Gas Port Size Explained: Reliability, Recoil...
  • Infographic showing overgassed, ideal, and undergassed AR-15 ejection patterns with recoil and cycling characteristics.
    Overgassed vs Undergassed AR-15: Symptoms, Causes...
  • Close-up of an AR-15 barrel with gas block and gas tube on a light background
    AR-15 Gas System Explained: How It Actually Works
  • assembled AR-15 bolt carrier group resting on a wooden surface
    Best Bolt Carrier Groups by Use Case and Reliability
  • assembled AR-15 bolt carrier group resting on a wooden surface
    Bolt Carrier Group Buying Guide: How to Choose the...

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