The bolt carrier group (BCG) is the mechanical core of the AR-15 platform. It controls firing...
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How an AR-15 Works: Complete Cycling Process Explained
An AR-15 works by using gas pressure from a fired cartridge to cycle its internal components, eject...
AR-15 Parts List: Complete Breakdown of Every Component
Understanding an AR-15 starts with knowing what makes it function as a complete system. At a basic...
What Is a Lower Receiver? Function, Parts, and Legal Overview
A lower receiver is the central structural component of an AR-15 platform. It houses the fire...
What Is an Upper Receiver? Complete Breakdown
The upper receiver is the top half of the rifle’s receiver assembly. On AR-pattern rifles, it holds...
AR Platform Explained: Complete Beginner Guide
Most AR buying mistakes start with the same problem: trying to choose parts before understanding...
