Layout B - Upper Authority

Layout B (with load more)

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

What Is an Upper Receiver? Complete Breakdown

2 months ago

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

AR Platform Explained: Complete Beginner Guide

3 months ago